Unorthodox Ultra A

Unorthodox Racing Ultra Accessory pulleys are included in Unorthodox's Ultra Street Sets or may be purchased separately. They are CNC-machined from lightweight 6061-T6 aluminum billet. As with all Unorthodox products, premium 6061-T6 aluminum billet ensures the consistency of the material's strength and balance. Tolerances for each accessory pulley is held to within .001". In addition, numerous machining steps are taken to ensure the pulleys are the lightest possible design. Premium fit and finish ensures a beautifully matched set you are proud to display under the hood of your vehicle.

Power gains through the use of Ultra Accessory pulleys are obtained through weight loss. Unorthox does not underdrive with their accessory pulleys for two main reasons. The main reason is because all underdriving is done with their Ultra Street crank pulleys. This provides maximum weight loss at the crank where most of the horsepower gains are found. Second, not much horsepower is gained from extreme underdriving. It is important to keep charging systems, air conditioning, power steering, and water pumps moving fast enough for every day driving.

Since the Ultra Accessory pulleys are the same diameter as the stock units, you may install an Ultra Street lightened underdrive crank pulley as a first step. Then, at a later date, you may purchase Unorthodox Ultra Accessories and install them without having to change belts again (on most models).

Unorthodox Ultra Accessory pulleys cover most of the same applications as their Ultra Street Sets. Ultra Accessory pulleys are available in black, polished, red, and blue anodizing. Please note that on some models red and blue anodizing is a special order and will sometimes require additional time to ship.