JM Racing builds some of the fastest motors in the country. With over 30 years’ experience with 2-stroke and 4-stroke engines, JM Racing is truly your full service We’ve built race motors for the top riders in the country like Trey Canard, Ryan Dungey and many others. We have the experience and know how to build motors that perform at there peak while having great reliability for hours of run time.

4-Stroke Head modification

Cylinder and Head Modifications 2-Stroke