No other belts protect your engine while delivering powerfully high performance like Gates Racing, Performance, Muscle (RPM) Timing Belts. Gates RPM Timing Belts are incredibly strong and extremely heat resistant, engineered to take on high speeds and rapid accelerations. Constructed of HNBR elastomeric composites, Gates RPM Timing Belts are as much as 300% stronger than stock belts and deliver up to three times the heat resistance. You can count on RPM to hold up to the rigors of high horsepower required for interference engines.