| Engine | |
|---|---|
| Model | Ninja 400 |
| Engine Type | Liquid-cooled, 4-stroke Parallel Twin |
| Displacement | 399 cm³ |
| Bore X Stroke | 70 x 51.8 mm |
| Compression Ratio | 11.5:1 |
| Valve System | DOHC, 8 valves |
| Fuel System | Fuel injection: Ø 32 mm x 2 |
| Ignition | Digital |
| Starting | Electric |
| Transmission | 6-speed, return |
| Final Drive | Sealed chain |
| Primary Reduction Ratio | 2.219 (71/32) |
| 1ST | 2.928 (41/14) |
| 2ND | 2.055 (37/18) |
| 3RD | 1.619 (34/21) |
| 4TH | 1.333 (32/24) |
| 5TH | 1.154 (30/26) |
| 6TH | 1.037 (28/27) |
| Final Drive Reduction Ratio | 2.929 (41/14) |
| Frame | |
|---|---|
| Type | Trellis, high-tensile steel |
| Wheel Travel Front | 120 mm |
| Wheel Travel Back | 130 mm |
| Tyre | |
|---|---|
| Front | 110/70R17 M/C 54H |
| Rear | 150/60R17 M/C 66H |
| Caster (Rake) | 24 degrees |
| Trail | 92 mm |
| Suspension | |
|---|---|
| Front | 41mm telescopic fork |
| Rear | Bottom-Link Uni-Trak, gas-charged shock with adjustable preload |
| Brakes | |
|---|---|
| Front | Single semi-floating 310 mm petal discs. Caliper: Single balanced actuation dual piston |
| Rear | Single 220 mm petal disc. Caliper: single-piston |
| Dimensions | |
|---|---|
| L x W x H | 1,990 x 710 x 1,120 mm |
| Wheelbase | 1,370 mm |
| Ground Clearance | 140 mm |
| Seat Height | 785 mm |
| Curb Mass | 168 kg |
| Fuel Capacity | 14 litres |
| Performance | |
|---|---|
| Max Power | 33.4 kW {45 PS} |
| Max Power With RAM Air | 10,000 rpm |
| Maximum Torque | 38 N•m {3.9 kgf•m} / 8,000 rpm |
| Colour/s | Ebony Black and Kawasaki Racing Team Lime Green |