The Ninja 400 offers the largest displacement in its category at 399cc with the sophistication of twin-cylinder power. Approachable power, superb ergonomics and class-leading performance offer a smooth, manageable ride that’s ideal for new riders while also alluring experienced riders. A low seat height and aggressive styling with LED headlights make the Ninja 400 the ideal choice for riders looking to enter the sport-riding scene.

Next-level Power

The Ninja 400 motorcycle engine delivers the perfect balance of high-performance thrills and easy-to-use power.

Class-leading Power

The four-stroke, 399cc twin-cylinder is the largest displacement engine in its class and delivers smooth easy-to-use power for maximum rider confidence while also offering outstanding fuel efficiency.

Assist & Slipper Technology

The assist function provides an exceptionally light clutch pull and produces a wide clutch engagement range for comfort and confidence. The slipper function reduces the effect of back-torque for smooth and seamless downshifts. 2020 model shown.

Confident Acceleration

Best in class roll-on acceleration to confidently accelerate up to speed. 2020 model shown.

Nimble & Agile

The Ninja 400 motorcycle’s chassis dimensions were designed to deliver confident handling with a modern sporty feel at all speeds.

Lightweight & Agile

Similar in design to the unprecedented Ninja H2™ hypersport bike, the tube-type trellis frame is light in weight for smooth control and handling.

Progressive & dependable

The class leading semi-floating front disc brake delivers strong, progressive braking performance and is complemented by an Anti-lock Brake System (ABS)* that helps reduce wheel lock-up under certain conditions. *Model available in ABS and Non-ABS

Designed for Comfort

A sporty yet relaxed riding position accommodates a wide variety of riders and riding situations.

Sporty & Comfortable

Clip-on style handlebars offer a raised position for added comfort. 2020 model shown.

Easy & Accessible

A narrow seat design and low 30.9” seat height allows the rider to confidently reach the ground and creates a lower center of gravity for confident handling. 2020 model shown.

Added Comfort

Forward-oriented footpeg position contributes to comfortable ergonomics and a confident reach to the ground at stops.

Sharp & Modern

Aggressive Ninja styling boasts high-class modern design with superb fit and finish inspired by the larger displacement Ninja supersport bikes.

High-tech

The high-grade cockpit of the Ninja 400 motorcycle features a multi-function dash meter that includes a gear position indicator.

Excellent Visibility

Twin LED headlights produce strong white lighting and include low and high beams as well as position lamps.

Technology

  • Maximum Power

    33.4 kW {45 PS} / 10,000 rpm

    • Maximum Torque

      38.0 N.m {3.9 kgf.m} / 8,000 rpm

      • Engine

        4-stroke Parallel Twin

        • Displacement

          399 cm3

          • Bore x Stroke

            70.0 × 51.8 mm

            • Compression Ratio

              11.5:1

              • Valve System

                DOHC, 8 valves

                • Fuel System

                  Fuel injection: o32 mm x 2

                  • Ignition

                    Digital

                    • Starting

                      Electric

                      • Cooling

                        Liquid-cooled

                        • Lubrication

                          Forced lubrication, wet sump

                          • Transmission

                            6-speed, return

                            • Primary Reduction Ratio

                              2.219 (71/32)

                              • Gear Ratio: 1st

                                2.928 (41/14)

                                • Gear Ratio: 2nd

                                  2.055 (37/18)

                                  • Gear Ratio: 3rd

                                    1.619 (34/21)

                                    • Gear Ratio: 4th

                                      1.333 (32/24)

                                      • Gear Ratio: 5th

                                        1.154 (30/26)

                                        • Gear Ratio: 6th

                                          1.037 (28/27)

                                          • Final Reduction Ratio

                                            2.929 (41/14)

                                            • Clutch

                                              Wet multi-disc, manual

                                              • Final Drive

                                                Chain

                                                • Frame

                                                  Trellis, high-tensile steel

                                                  • Front Suspension

                                                    o41 mm telescopic fork

                                                    • Rear Suspension

                                                      Bottom-Link Uni-Trak, gas-charged shock with adjustable preload

                                                      • Front Wheel Travel

                                                        120mm

                                                        • Rear Wheel Travel

                                                          130mm

                                                          • Rake

                                                            24.7?

                                                            • Trail

                                                              92mm

                                                              • Steering Angle (L/R)

                                                                35? / 35?

                                                                • Front Tyre

                                                                  110/70R17 M/C 54H

                                                                  • Rear Tyre

                                                                    150/60R17 M/C 66H

                                                                    • Front Brake/s

                                                                      Single semi-floating o310 mm petal disc

                                                                      • Front Caliper/s

                                                                        Single balanced actuation dual-piston

                                                                        • Rear Brake

                                                                          Single o220 mm petal disc

                                                                          • Rear Caliper

                                                                            Single-piston

                                                                            • Dimensions (LxWxH)

                                                                              1990 × 710 × 1120mm

                                                                              • Overall Length

                                                                                1990mm

                                                                                • Overall Width

                                                                                  710

                                                                                  • Overall Height

                                                                                    1120

                                                                                    • Wheelbase

                                                                                      1370

                                                                                      • Road Clearance

                                                                                        140

                                                                                        • Seat Height

                                                                                          785

                                                                                          • Curb Mass

                                                                                            168 kg

                                                                                            • Fuel Capacity

                                                                                              14L

                                                                                            • POWER

                                                                                              • Maximum Power

                                                                                                33.4 kW {45 PS} / 10,000 rpm

                                                                                                • Maximum Torque

                                                                                                  38.0 N.m {3.9 kgf.m} / 8,000 rpm

                                                                                                  • Engine

                                                                                                    4-stroke Parallel Twin

                                                                                                    • Displacement

                                                                                                      399 cm3

                                                                                                      • Bore x Stroke

                                                                                                        70.0 × 51.8 mm

                                                                                                        • Compression Ratio

                                                                                                          11.5:1

                                                                                                          • Valve System

                                                                                                            DOHC, 8 valves

                                                                                                            • Fuel System

                                                                                                              Fuel injection: o32 mm x 2

                                                                                                              • Ignition

                                                                                                                Digital

                                                                                                                • Starting

                                                                                                                  Electric

                                                                                                                  • Cooling

                                                                                                                    Liquid-cooled

                                                                                                                    • Lubrication

                                                                                                                      Forced lubrication, wet sump

                                                                                                                      • Transmission

                                                                                                                        6-speed, return

                                                                                                                        • Primary Reduction Ratio

                                                                                                                          2.219 (71/32)

                                                                                                                          • Gear Ratio: 1st

                                                                                                                            2.928 (41/14)

                                                                                                                            • Gear Ratio: 2nd

                                                                                                                              2.055 (37/18)

                                                                                                                              • Gear Ratio: 3rd

                                                                                                                                1.619 (34/21)

                                                                                                                                • Gear Ratio: 4th

                                                                                                                                  1.333 (32/24)

                                                                                                                                  • Gear Ratio: 5th

                                                                                                                                    1.154 (30/26)

                                                                                                                                    • Gear Ratio: 6th

                                                                                                                                      1.037 (28/27)

                                                                                                                                      • Final Reduction Ratio

                                                                                                                                        2.929 (41/14)

                                                                                                                                        • Clutch

                                                                                                                                          Wet multi-disc, manual

                                                                                                                                          • Final Drive

                                                                                                                                            Chain

                                                                                                                                            • Frame

                                                                                                                                              Trellis, high-tensile steel

                                                                                                                                              • Front Suspension

                                                                                                                                                o41 mm telescopic fork

                                                                                                                                                • Rear Suspension

                                                                                                                                                  Bottom-Link Uni-Trak, gas-charged shock with adjustable preload

                                                                                                                                                  • Front Wheel Travel

                                                                                                                                                    120mm

                                                                                                                                                    • Rear Wheel Travel

                                                                                                                                                      130mm

                                                                                                                                                      • Rake

                                                                                                                                                        24.7?

                                                                                                                                                        • Trail

                                                                                                                                                          92mm

                                                                                                                                                          • Steering Angle (L/R)

                                                                                                                                                            35? / 35?

                                                                                                                                                            • Front Tyre

                                                                                                                                                              110/70R17 M/C 54H

                                                                                                                                                              • Rear Tyre

                                                                                                                                                                150/60R17 M/C 66H

                                                                                                                                                                • Front Brake/s

                                                                                                                                                                  Single semi-floating o310 mm petal disc

                                                                                                                                                                  • Front Caliper/s

                                                                                                                                                                    Single balanced actuation dual-piston

                                                                                                                                                                    • Rear Brake

                                                                                                                                                                      Single o220 mm petal disc

                                                                                                                                                                      • Rear Caliper

                                                                                                                                                                        Single-piston

                                                                                                                                                                        • Dimensions (LxWxH)

                                                                                                                                                                          1990 × 710 × 1120mm

                                                                                                                                                                          • Overall Length

                                                                                                                                                                            1990mm

                                                                                                                                                                            • Overall Width

                                                                                                                                                                              710

                                                                                                                                                                              • Overall Height

                                                                                                                                                                                1120

                                                                                                                                                                                • Wheelbase

                                                                                                                                                                                  1370

                                                                                                                                                                                  • Road Clearance

                                                                                                                                                                                    140

                                                                                                                                                                                    • Seat Height

                                                                                                                                                                                      785

                                                                                                                                                                                      • Curb Mass

                                                                                                                                                                                        168 kg

                                                                                                                                                                                        • Fuel Capacity

                                                                                                                                                                                          14L

                                                                                                                                                                                        • PERFORMANCE

                                                                                                                                                                                          • Maximum Power

                                                                                                                                                                                            33.4 kW {45 PS} / 10,000 rpm

                                                                                                                                                                                            • Maximum Torque

                                                                                                                                                                                              38.0 N.m {3.9 kgf.m} / 8,000 rpm

                                                                                                                                                                                              • Engine

                                                                                                                                                                                                4-stroke Parallel Twin

                                                                                                                                                                                                • Displacement

                                                                                                                                                                                                  399 cm3

                                                                                                                                                                                                  • Bore x Stroke

                                                                                                                                                                                                    70.0 × 51.8 mm

                                                                                                                                                                                                    • Compression Ratio

                                                                                                                                                                                                      11.5:1

                                                                                                                                                                                                      • Valve System

                                                                                                                                                                                                        DOHC, 8 valves

                                                                                                                                                                                                        • Fuel System

                                                                                                                                                                                                          Fuel injection: o32 mm x 2

                                                                                                                                                                                                          • Ignition

                                                                                                                                                                                                            Digital

                                                                                                                                                                                                            • Starting

                                                                                                                                                                                                              Electric

                                                                                                                                                                                                              • Cooling

                                                                                                                                                                                                                Liquid-cooled

                                                                                                                                                                                                                • Lubrication

                                                                                                                                                                                                                  Forced lubrication, wet sump

                                                                                                                                                                                                                  • Transmission

                                                                                                                                                                                                                    6-speed, return

                                                                                                                                                                                                                    • Primary Reduction Ratio

                                                                                                                                                                                                                      2.219 (71/32)

                                                                                                                                                                                                                      • Gear Ratio: 1st

                                                                                                                                                                                                                        2.928 (41/14)

                                                                                                                                                                                                                        • Gear Ratio: 2nd

                                                                                                                                                                                                                          2.055 (37/18)

                                                                                                                                                                                                                          • Gear Ratio: 3rd

                                                                                                                                                                                                                            1.619 (34/21)

                                                                                                                                                                                                                            • Gear Ratio: 4th

                                                                                                                                                                                                                              1.333 (32/24)

                                                                                                                                                                                                                              • Gear Ratio: 5th

                                                                                                                                                                                                                                1.154 (30/26)

                                                                                                                                                                                                                                • Gear Ratio: 6th

                                                                                                                                                                                                                                  1.037 (28/27)

                                                                                                                                                                                                                                  • Final Reduction Ratio

                                                                                                                                                                                                                                    2.929 (41/14)

                                                                                                                                                                                                                                    • Clutch

                                                                                                                                                                                                                                      Wet multi-disc, manual

                                                                                                                                                                                                                                      • Final Drive

                                                                                                                                                                                                                                        Chain

                                                                                                                                                                                                                                        • Frame

                                                                                                                                                                                                                                          Trellis, high-tensile steel

                                                                                                                                                                                                                                          • Front Suspension

                                                                                                                                                                                                                                            o41 mm telescopic fork

                                                                                                                                                                                                                                            • Rear Suspension

                                                                                                                                                                                                                                              Bottom-Link Uni-Trak, gas-charged shock with adjustable preload

                                                                                                                                                                                                                                              • Front Wheel Travel

                                                                                                                                                                                                                                                120mm

                                                                                                                                                                                                                                                • Rear Wheel Travel

                                                                                                                                                                                                                                                  130mm

                                                                                                                                                                                                                                                  • Rake

                                                                                                                                                                                                                                                    24.7?

                                                                                                                                                                                                                                                    • Trail

                                                                                                                                                                                                                                                      92mm

                                                                                                                                                                                                                                                      • Steering Angle (L/R)

                                                                                                                                                                                                                                                        35? / 35?

                                                                                                                                                                                                                                                        • Front Tyre

                                                                                                                                                                                                                                                          110/70R17 M/C 54H

                                                                                                                                                                                                                                                          • Rear Tyre

                                                                                                                                                                                                                                                            150/60R17 M/C 66H

                                                                                                                                                                                                                                                            • Front Brake/s

                                                                                                                                                                                                                                                              Single semi-floating o310 mm petal disc

                                                                                                                                                                                                                                                              • Front Caliper/s

                                                                                                                                                                                                                                                                Single balanced actuation dual-piston

                                                                                                                                                                                                                                                                • Rear Brake

                                                                                                                                                                                                                                                                  Single o220 mm petal disc

                                                                                                                                                                                                                                                                  • Rear Caliper

                                                                                                                                                                                                                                                                    Single-piston

                                                                                                                                                                                                                                                                    • Dimensions (LxWxH)

                                                                                                                                                                                                                                                                      1990 × 710 × 1120mm

                                                                                                                                                                                                                                                                      • Overall Length

                                                                                                                                                                                                                                                                        1990mm

                                                                                                                                                                                                                                                                        • Overall Width

                                                                                                                                                                                                                                                                          710

                                                                                                                                                                                                                                                                          • Overall Height

                                                                                                                                                                                                                                                                            1120

                                                                                                                                                                                                                                                                            • Wheelbase

                                                                                                                                                                                                                                                                              1370

                                                                                                                                                                                                                                                                              • Road Clearance

                                                                                                                                                                                                                                                                                140

                                                                                                                                                                                                                                                                                • Seat Height

                                                                                                                                                                                                                                                                                  785

                                                                                                                                                                                                                                                                                  • Curb Mass

                                                                                                                                                                                                                                                                                    168 kg

                                                                                                                                                                                                                                                                                    • Fuel Capacity

                                                                                                                                                                                                                                                                                      14L

                                                                                                                                                                                                                                                                                    • DETAILS

                                                                                                                                                                                                                                                                                      • Maximum Power

                                                                                                                                                                                                                                                                                        33.4 kW {45 PS} / 10,000 rpm

                                                                                                                                                                                                                                                                                        • Maximum Torque

                                                                                                                                                                                                                                                                                          38.0 N.m {3.9 kgf.m} / 8,000 rpm

                                                                                                                                                                                                                                                                                          • Engine

                                                                                                                                                                                                                                                                                            4-stroke Parallel Twin

                                                                                                                                                                                                                                                                                            • Displacement

                                                                                                                                                                                                                                                                                              399 cm3

                                                                                                                                                                                                                                                                                              • Bore x Stroke

                                                                                                                                                                                                                                                                                                70.0 × 51.8 mm

                                                                                                                                                                                                                                                                                                • Compression Ratio

                                                                                                                                                                                                                                                                                                  11.5:1

                                                                                                                                                                                                                                                                                                  • Valve System

                                                                                                                                                                                                                                                                                                    DOHC, 8 valves

                                                                                                                                                                                                                                                                                                    • Fuel System

                                                                                                                                                                                                                                                                                                      Fuel injection: o32 mm x 2

                                                                                                                                                                                                                                                                                                      • Ignition

                                                                                                                                                                                                                                                                                                        Digital

                                                                                                                                                                                                                                                                                                        • Starting

                                                                                                                                                                                                                                                                                                          Electric

                                                                                                                                                                                                                                                                                                          • Cooling

                                                                                                                                                                                                                                                                                                            Liquid-cooled

                                                                                                                                                                                                                                                                                                            • Lubrication

                                                                                                                                                                                                                                                                                                              Forced lubrication, wet sump

                                                                                                                                                                                                                                                                                                              • Transmission

                                                                                                                                                                                                                                                                                                                6-speed, return

                                                                                                                                                                                                                                                                                                                • Primary Reduction Ratio

                                                                                                                                                                                                                                                                                                                  2.219 (71/32)

                                                                                                                                                                                                                                                                                                                  • Gear Ratio: 1st

                                                                                                                                                                                                                                                                                                                    2.928 (41/14)

                                                                                                                                                                                                                                                                                                                    • Gear Ratio: 2nd

                                                                                                                                                                                                                                                                                                                      2.055 (37/18)

                                                                                                                                                                                                                                                                                                                      • Gear Ratio: 3rd

                                                                                                                                                                                                                                                                                                                        1.619 (34/21)

                                                                                                                                                                                                                                                                                                                        • Gear Ratio: 4th

                                                                                                                                                                                                                                                                                                                          1.333 (32/24)

                                                                                                                                                                                                                                                                                                                          • Gear Ratio: 5th

                                                                                                                                                                                                                                                                                                                            1.154 (30/26)

                                                                                                                                                                                                                                                                                                                            • Gear Ratio: 6th

                                                                                                                                                                                                                                                                                                                              1.037 (28/27)

                                                                                                                                                                                                                                                                                                                              • Final Reduction Ratio

                                                                                                                                                                                                                                                                                                                                2.929 (41/14)

                                                                                                                                                                                                                                                                                                                                • Clutch

                                                                                                                                                                                                                                                                                                                                  Wet multi-disc, manual

                                                                                                                                                                                                                                                                                                                                  • Final Drive

                                                                                                                                                                                                                                                                                                                                    Chain

                                                                                                                                                                                                                                                                                                                                    • Frame

                                                                                                                                                                                                                                                                                                                                      Trellis, high-tensile steel

                                                                                                                                                                                                                                                                                                                                      • Front Suspension

                                                                                                                                                                                                                                                                                                                                        o41 mm telescopic fork

                                                                                                                                                                                                                                                                                                                                        • Rear Suspension

                                                                                                                                                                                                                                                                                                                                          Bottom-Link Uni-Trak, gas-charged shock with adjustable preload

                                                                                                                                                                                                                                                                                                                                          • Front Wheel Travel

                                                                                                                                                                                                                                                                                                                                            120mm

                                                                                                                                                                                                                                                                                                                                            • Rear Wheel Travel

                                                                                                                                                                                                                                                                                                                                              130mm

                                                                                                                                                                                                                                                                                                                                              • Rake

                                                                                                                                                                                                                                                                                                                                                24.7?

                                                                                                                                                                                                                                                                                                                                                • Trail

                                                                                                                                                                                                                                                                                                                                                  92mm

                                                                                                                                                                                                                                                                                                                                                  • Steering Angle (L/R)

                                                                                                                                                                                                                                                                                                                                                    35? / 35?

                                                                                                                                                                                                                                                                                                                                                    • Front Tyre

                                                                                                                                                                                                                                                                                                                                                      110/70R17 M/C 54H

                                                                                                                                                                                                                                                                                                                                                      • Rear Tyre

                                                                                                                                                                                                                                                                                                                                                        150/60R17 M/C 66H

                                                                                                                                                                                                                                                                                                                                                        • Front Brake/s

                                                                                                                                                                                                                                                                                                                                                          Single semi-floating o310 mm petal disc

                                                                                                                                                                                                                                                                                                                                                          • Front Caliper/s

                                                                                                                                                                                                                                                                                                                                                            Single balanced actuation dual-piston

                                                                                                                                                                                                                                                                                                                                                            • Rear Brake

                                                                                                                                                                                                                                                                                                                                                              Single o220 mm petal disc

                                                                                                                                                                                                                                                                                                                                                              • Rear Caliper

                                                                                                                                                                                                                                                                                                                                                                Single-piston

                                                                                                                                                                                                                                                                                                                                                                • Dimensions (LxWxH)

                                                                                                                                                                                                                                                                                                                                                                  1990 × 710 × 1120mm

                                                                                                                                                                                                                                                                                                                                                                  • Overall Length

                                                                                                                                                                                                                                                                                                                                                                    1990mm

                                                                                                                                                                                                                                                                                                                                                                    • Overall Width

                                                                                                                                                                                                                                                                                                                                                                      710

                                                                                                                                                                                                                                                                                                                                                                      • Overall Height

                                                                                                                                                                                                                                                                                                                                                                        1120

                                                                                                                                                                                                                                                                                                                                                                        • Wheelbase

                                                                                                                                                                                                                                                                                                                                                                          1370

                                                                                                                                                                                                                                                                                                                                                                          • Road Clearance

                                                                                                                                                                                                                                                                                                                                                                            140

                                                                                                                                                                                                                                                                                                                                                                            • Seat Height

                                                                                                                                                                                                                                                                                                                                                                              785

                                                                                                                                                                                                                                                                                                                                                                              • Curb Mass

                                                                                                                                                                                                                                                                                                                                                                                168 kg

                                                                                                                                                                                                                                                                                                                                                                                • Fuel Capacity

                                                                                                                                                                                                                                                                                                                                                                                  14L

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