2015 Honda CRF150R, 2015 Honda CRF150R Small Bike, Big Trophies. Honda s CRF150R is, hands down, the best MX machine in the Mini Class. Designed around a four-stroke powerplant that showcases plenty of Honda technology, it s also graced with the performance that will keep you up at the front of the pack and on the podium. And the CRF150R is available in two versions to fit a wider variety of riders: CRF150R Expert, featuring bigger wheels, a higher seat and longer swingarm. Fine-Tuned Suspension. Showa® front and rear gives you unrivaled suspension action, especially over smaller, faster bumps that unsettle a bike s chassis. High Tech = High Performance. Thanks to the Unicam® cylinder head, this four-stroke engine is more powerful yet more compact, improving handling, power and efficiency.