Drive Belt Designed for vintage, fan cooled and lower horsepower (500cc) snowmobiles, Specially formulated heat resistant, fiber-loaded polymers are engineered for long belt life, Aramid cord provides outstanding strength and durability, Extensive lab and field testing assure enhanced performance, Innovative design is strong but flexible for cool, efficient operation, Tenacious gripping power during the highest levels of torque, Quick and consistent throttle response, Robust acceleration at high RPM, 1-year warranty