DAYCO PRODUCTS,LLC Drive Belt - XTX (Extreme Torque) - 1.375" (W) x 44.625" (OC) XTX5066

Drive Belt - XTX (Extreme Torque) - 1.375" (W) x 44.625" (OC) Manufactured from specially formulated to high-temperature polymer and designed with deeper cogs on top and rounded cogs on the bottom, Faster and more consistent throttle response, higher speed and quicker throttle response at mid-speed acceleration, Greater secondary acceleration at high rpm's and as primary acceleration increases, Offers better performance during deceleration (more responsive engine braking), Designed to maximize the performance of high-horsepower engines, Tested and proven to be reliable at well over 12,000 rpm, Operates at a cooler running temperature, Provides more power to track, Belt length is measured by OC (Outer Circumference)., Belt width is measured by top width.