2009 HONDA CRF150R CRF 150R CRF150 R, The CRF150R may be Honda's smallest MX machine, but it has everything it needs to be a big winner. It starts with a Unicam. engine and an adjustable Showa. suspension. Throw in a Pro-Link. rear suspension just like the big boys, and even though it's designed for smaller racers, it's big on the features you expect from a Honda.