This was the "early" design, with an cast alloy body, and fitted to the Mk1 CRF250 only. CRF250 L & M (2013-16). Later versions (14520-K33-D01) utilised black plastic in parts of the body, and were fitted across the range of bikes using this engine, such as the CBR300, CMX300 Rebel, and CRF300's.