Motorcycle specifications Kawasaki KX 450 2021 Obsession in every spike

The Kawasaki KX 450 enters the 2021 season with a number of modifications designed to fine-tune the machine. No major upheavals, but the same exacting standards on which Kawa's racing engineers have focused. This should satisfy the demands of intermediate to expert riders, who form the basis of the big KX's driver base.

As far as the engine is concerned, the most notable change is the adoption of a dry lubricating film on the piston skirt, which reduces friction between the piston itself and the cylinder wall, to the benefit of performance.

Highly appreciated when first introduced, the KX 450's hydraulic clutch has been improved this season to reduce lever effort and widen the engagement range, making metering easier.

In the same field, Kawasaki engineers have revised both the friction material and the size of the discs. Disc size has been increased from Ø 139 mm to Ø 146 mm, while a new friction material helps to increase wear resistance. On disengagement, the slightly offset segments (in rotation) of the friction plates facilitate disc separation and reduce frictional resistance.

Finally, in terms of changes, a Fatbar Renthal handlebar is now standard on the KX 450. With a tube diameter of 28.6 mm, the all-aluminum bar helps reduce vibrations and shocks transmitted to the rider, while a handlebar position that's 19 mm lower and 8 mm closer together makes it easier to carry your weight on the front wheel.

For 2021, this KX 450 looks to be the most accomplished of all time. No choice in a segment where the competition is fierce.

News and media: Kawasaki