Unleash double-digit horsepower gains from your motor with underdrive pulleys. They make your motor more efficient, and more powerful.
The gears inside alternators and the water pumps go ‘round and ‘round, siphoning off raw engine power with every rotation. Underdrive pulleys put an end to this wasteful horsepower spending, putting lost energy back into your pedal. What’s more, underdrive pulleys give your motor a tough new look.