[Designed to take the heat] Deep double cog style reduces clutch heat. Designed for Severe Duty applications - high horsepower, high torque and extreme riding environments. [Test and Validated] Trusted quality and performance from The Clutch Guys. [Replaces] Yamaha OEM 1XD-17641-00-00 and 2MB-E7641-00-00. [One Year Warranty] All EPI Drive Belts are covered by a 1 Year Limited Warranty.