Tilton’s 4.5″ OT-IV clutches offer a unique combination of extremely low inertia, high torque capacity, high heat capacity and smooth engagement characteristics. Because of these features, they can be used in road racing, endurance racing, off-road and high-performance street applications. The carbon matrix plates (driven and floater) do not warp from heat, providing consistent shifting and minimizing heat-related clutch failures. The smooth engagement characteristics of the carbon plates provide good drivability and reduce “shock” to other driveline components. Through the use of additional pressure plates (shims) and periodic rebuilds, OT-Series carbon/carbon clutches offer a long life option.