4T Ultimate with Patented ER² Groove Design has many features which make the product unique. The kit’s clutch disc has a unique flywheel side friction material. The Aramid friction material exhibits 50% less wear than a conventional clutch disc’s friction material. This material also reduces the effects of clutch fade. Fade is the decline in the clutch system’s ability to transmit torque as operating temperatures increase. The clutch pressure plate incorporates 4T Ultimate’s exclusive ER² design technology.

All these features are why the 4Terrain Ultimate is the ultimate clutch for any serious off-road vehicle

4Terrain Heavy Duty is a tough, no-nonsense clutch upgrade designed for hardworking vehicles. Engineered to handle high torque loads it leaves standard specification clutches behind.

The system has been engineered for the following uses that need higher than original torque capacity: