First Look: 2018 Kawasaki Ninja 400

As expectedKawasaki has replaced its Ninja 300 with a new, larger Ninja 400, setting a new bar for the entry-level sportbike class with a 399cc powerplant. After years with the Ninja 250 and more recently the Ninja 300, Kawasaki acknowledged the recent influx of larger competitors such as the Yamaha R3 and KTM RC390 by introducing this new 2018 Ninja 400.

As with the 250 and 300 before it, the Ninja 400 is powered by a parallel-Twin engine. To reach 399cc, the Ninja 400’s engine has a 70.0 mm bore and a 51.8 mm stroke (compared to 62.0 mm by 49 mm for the Ninja 300). Boasting 44.8 hp at 10000rpm and 28.0 lb-ft. at 8000 rpm, the Ninja 400 claims a significant performance increase over the Ninja 300. While the extra 103cc has a lot to do with that, Kawasaki also increased the size of the airbox and modified the downdraft intake for a shorter, more direct airflow path. Kawasaki also redesigned the radiator fan cover to push hot air outwards away from the rider.

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