2012 KX250F and KX450F

Kawasaki has announced upgraded versions of its KX250F and KX450F off-roaders for 2012.

In a world first for a production motocross bike, the KX250F’s single-cylinder engine gets dual fuel injectors. This novel system is claimed to give a smooth and instant throttle response, combined with extra power.

Kawasaki KX250F (2012) Front Side
Kawasaki KX250F (2012) Side

The chassis has also received attention. Included in the specifications for 2012 is Showa’s Separate Function front Fork (SFF), which benefits the handling by separating out the shock absorption and damping actions. The rear hasn’t been forgotten either, and the Uni-Trak suspension set-up has been given some tweaks.

A major innovation for the larger KX450F is its launch control feature. Similar to the system used by Kawasaki’s factory racers, it’s activated by the push of a button and works by switching to a separate engine map that’s designed to reduce wheel spin in slippery conditions.

Kawasaki KX450F (2012) Front Side
Kawasaki KX450F (2012) Rear Side
Kawasaki KX450F (2012) Side

There are also three switchable engine maps for soft, standard or hard terrain. Each of these can then be modified by using the optional KX FI Calibration Kit, which also allows riders to record and analyse data direct from their bike.

UK prices for the 2012 KX250F and KX450F have yet to be confirmed but, to give an idea of where they’re likely to be, the 2011 models currently retail for £6,249 and £6,449 respectively.

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