The XS Drive Belt is designed for high-power snowmobiles and offers superior performance and longer lifespan. It features a specially formulated rubber compound not found in other snowmobile belts. Tests have shown that the XS transmits more power and runs cooler. The double-sided tooth design makes the belt more flexible and helps disperse heat. The width of the belt is measured at the top of the width, while the length is measured at the outer circumference (OC).