At WMI we are experts at motocross engine, suspension and chassis modifications. With thousands of hours building and testing every major brand of MX bike we know how to get the most out of your machine. We build motors and suspension for customers all over the world, one at a time. We speak to the rider or mechanic to determine what is the best modification to perform for that particular bike, and then we go to work. WMI has built more four stroke motors than most any other race shop in the country, we even make custom valve train components that are designed to match perfectly with our head modifications. Using computer technology to map every two stroke cylinder, we carefully port and polish for countless hours until we are completely happy with the final result. After cutting thousands of cylinders we can tell when it's perfect, and that's when it's done. Through testing the team bikes we learn so much, and we take that knowledge and experience back to the motor room. There is always room for improvement so we are constantly tweaking our specs to make sure you are getting the very latest technology. If you are sick of the production line motor builders and are ready for one on one personal attention call us today.