Kawasaki Ninja 400
The Kawasaki Ninja 400 was introduced in 2018 as a replacement for the Ninja 300, featuring a completely new parallel-twin engine and trellis frame borrowed from the larger Ninja 650. It quickly became one of the most praised beginner-to-intermediate motorcycles on the market, winning numerous awards including Cycle World's 'Best Beginner Bike' due to its surprisingly capable performance and handling. Its blend of accessible power, lightweight chassis, and premium styling made it a benchmark in the small-displacement sport bike segment.
45 hp
Power
38 Nm
Torque
168 kg
Weight
175 km/h
Top Speed
3.7 L/100km (approx. 27 km/L typical real-world average)
Fuel
Faired
Body
What Buyers Should Know
Bulletproof Reliability Record
The Ninja 400's parallel-twin engine is widely praised for its durability with minimal reported mechanical failures. Regular oil changes and valve checks every 15,000 miles are essentially all the maintenance most owners ever need.
Strong Resale Value
The Ninja 400 holds its value exceptionally well, often retaining 75-85% of its value after one year due to high demand from new riders. Clean used examples regularly sell close to MSRP, making it a smart buy but a pricey used find.
Watch for Stator Issues
A known issue on some early 2018-2019 models is a failing stator, which can cause charging problems and unexpected battery drain. Always check the charging system voltage (should read ~14V at idle) before purchasing a used example.
Full Specifications
Rivals & Alternatives
Bikes that buyers cross-shop with the Kawasaki Ninja 400
