In 1986, Tilton Engineering introduced its first OT-Series clutch.  The “open type” design of OT-Series clutches provided lower operating temperatures and cleaner operation when compared to the “closed type” clutches that were the standard at the time.

Today, Tilton OT-Series clutches have grown to become some of the most widely used and successful clutches in racing.  On any given weekend, Tilton OT-Series clutches can be found winning races, from the local racetrack to world renowned racing circuits.  They have earned a reputation for providing the level of quality, performance and reliability needed to win championships.