These three dirt bikes feature 450cc single-cylinder liquid-cooled four-stroke engines with a 13.5:1 compression ratio. They all use a close-ratio 5-speed transmission and weigh between 247 and ...

This is the case with the Honda CRF250R and the CRF250F. Both of these models are dirt bikes and both of them are powered by a fuel-injected 250-class engine with a five-speed transmission.

Check out Honda's new motocross bike, the 2002 Honda CRF 450R- a four stroke dirt bike with the handling, weight, and performance of a two stroke race bike! It also has impressive suspension with ...