22 June. Monday 2026
Kawasaki Ninja 400 - 2021 Specifications and Reviews
The 2021 Kawasaki Ninja 400 is an entry-level sport bike perfectly suited for new riders and commuters seeking an affordable, nimble machine. Its lightweight 399cc twin-cylinder engine delivers approachable power with excellent fuel efficiency, while the assist and slipper clutch make it forgiving in urban riding. Known for its sleek Ninja styling and reliable performance, it strikes an ideal balance between sportiness and practicality.
General information | |
| Price as new | 3.6 Check out the detailed rating of racing track capabilities, engine performance, accident risk, etc. Compare with any other bike. |
| Category | Sport |
| Year | 2021 |
| Model | Kawasaki Ninja 400 |
| | |
Engine and Transmission Specifications | |
| Clutch | Assist and Slipper Clutch |
| Transmission type | Chain (final drive) |
| Gearbox | 6-speed |
| Cooling system | Liquid |
| Ignition | TCBI w/digital advance |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) |
| Fuel system | Injection |
| Bore x Stroke | 70.0 x 51.8 mm (2.8 x 2.0 inches) |
| Compression | 11.5:1 |
| Engine type | Twin, four-stroke |
| Capacity: | 399.0 ccm (24.35 cubic inches) |
| | |
Brakes, suspension, Frame and wheels | |
| Rear brakes | Single disc. Single petal-type disc with single-piston caliper. Optional ABS. |
| Diameter | 310 mm (12.2 inches) |
| Front brakes | Single disc. Single petal-type disc with 2-piston calipers. Optional ABS. |
| Rear tire | 150/70-17 |
| Front tire | 110/70-17 |
| Rear wheel travel | 130 mm (5.1 inches) |
| Rear Suspension | Horizontal back-link with adjustable spring preload |
| Front wheel travel | 119 mm (4.7 inches) |
| Front Suspension | 41mm hydraulic telescopic fork |
| Trail | 91 mm (3.6 inches) |
| Rake (fork angle) | 24.7° |
| Frame type | Trellis, high-tensile steel |
Physical measures and capacities | |
| Fuel capacity | 3.70 litres (0.98 US gallons) |
| Wheelbase | 1369 mm (53.9 inches) |
| Ground clearance | 140 mm (5.5 inches) |
| Overall width | 711 mm (28.0 inches) |
| Overall length | 1989 mm (78.3 inches) |
| Overall height | 1120 mm (44.1 inches) |
| Seat height | 785 mm (30.9 inches) If adjustable, lowest setting. |
| Dry weight | 167.0 kg (368.2 pounds) |
Other specs | |
| Comments | Small windscreen. Economical Riding Indicator. |
| Factory warranty | 12 Month Limited Warranty |
| Starter | Electric |
| Color options | Pearl Blizzard White, Metallic Spark Black/ Metallic |
Rider Reviews
Total comments: 1
MotorcycleDB Review
The 2021 Kawasaki Ninja 400 motorcycle is a powerful and agile sports bike that delivers an exhilarating riding experience. With its 399cc parallel-twin engine, this bike boasts impressive performance and exceptional handling, making it a top choice for riders looking for a thrilling ride. The sleek and stylish design of the Ninja 400, combined with its advanced technology features, sets it apart from other bikes in its class. Whether you're a new rider or a seasoned motorcyclist, the Ninja 400 offers an impressive combination of power, precision, and style. Overall, the 2021 Kawasaki Ninja 400 motorcycle is a fantastic choice for anyone in the market for a high-performance sports bike. Its powerful engine, exceptional handling, and stylish design make it a standout option in its class. Whether you're hitting the open road or tackling twisty turns, the Ninja 400 is sure to provide an adrenaline-pumping experience for riders of all skill levels.Add a Comment
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