The CRF450R will surely become the king of the flyways having so many race-dominating advantages. Explosive power comes from the liquid-cooled, four-stroke, four-valve single cylinder engine, which is housed in the most advanced aluminum chassis design. This power combined with a remarkably light 102kg machine delivers a power to weight ratio that has been the sole domain of two-stroke motocrossers - until now! 

Other performance features include a unique 'Unicam' valve train providing the light weight of a compact single cam drive and the optimum combustion chamber shape for maximum power at all engine speeds and an ultra-flat and lightweight 'mini-skirt piston'. The use of weight-saving materials such as titanium, improves the power-to-weight ratio producing a class-leading machine.
In fact the CRF450R is everything that's needed to deliver that instantaneous rush of big power required to compete and conquer, in the world's most competitive class of off-road racing