What are Unorthodox Racing Ultra/Tuner Series pulleys?
Our pulleys are available in three (3) types: • FIRST – Accessory pulleys (Ultra A) for air pumps, alternators, idlers, power steerings & water pumps. These pulleys are the same diameter as the OEM (original) pulley/s, in most cases, they are replacing but they are much lighter. The accessory pulleys are included in our pulley sets, these sets also include the crank pulley. Even if you buy a crank pulley first the accessory pulleys for most models are available separately. So you are never locked out of the full set and the maximum potential HP gains. • SECOND – Crank pulleys, which are available in three (3) versions. First Version: underdrive crank pulleys in standard belt layout (Ultra S). They drive all the accessories that your came with from the factory. This version is up to 20% smaller in diameter and they are 60-90% lighter than the stock pulleys they replace. This is why we do all of the underdriving at the crank pulley, to maximize the reduction in weight on the crank. Secon
