Crafted and built for racing snowmobiles used in extreme environments - such as natural or artificially-made tracks consisting of tight turns, banked corners, steep jumps and obstacles. The Dayco POWER Racing RPX belt - the Official Belt of the CSRA for Snowcross Racing - provides maximum performance under the most extreme snowcross racing conditions. This belt features precisely pre-formed cogs that enable optimal flexibility, cooler running and extended belt life, along with high twist cords that demand intense strength under extreme tension.