Today's high horsepower machines can out perform yesterday's drive belts. The UltiMax tradition of quality and innovation continues with the new XS belts. It's the belt you've been waiting for to deliver peak performance and dependability never before available. Ultimax XS has increased strength and is built with new heat tolerant materials. The new XS belts feature a revolutionary new formulated rubber compound found in no other snowmobile belt. Extensive lab and field tests prove the XS belts transfer more power and runs cooler which deliver superior performance and longer belt life. For high performance sleds, capture the power with ULTIMAX XS.