Tilton’s 5.5″ OT-III carbon racing clutches offer a unique combination of extremely low inertia, high torque capacity, high heat capacity, and smooth engagement characteristics. 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 excellent drivability and reduce shifting shock to other driveline components. Through the use of additional pressure plates (shims) and periodic rebuilds, 5.5″ OT-III carbon racing clutches offer a long-life option for the serious racer.
These features make Tilton’s 5.5″ carbon racing clutch ideal for the following applications:
- Road racing
- Endurance racing
- Short-course off-road
- Open-wheel/formula
The moment of inertia for Tilton’s 5.5″ OT-III carbon racing clutches range from 14.6 lb-in2 (.0043 kg-m2) to 25.3 lb-in2 (.0074 kg-m2).
Tilton’s 5.5″ carbon clutches range in weight from 3.0 lbs (1.4 kg) to 5.2 lbs (2.3 kg).
Tilton’s 5.5″ carbon clutches can handle 250 lb-ft (340 Nm) of torque per plate with a high-ratio pressure plate, and 300 lb-ft (408 Nm) of torque per plate with an ultra-high-ratio pressure plate.
Specifications
| Plate Count | Release Load* (lbs/dan) | Weight** (lbs/kg) | M.O.I.** (lbs-in²/kg-m²) | Torque Capacity (lb-ft/nm) | Pressure Plate Ratio |
| 1 Plate | 850/375 | 3.0/1.4 | 14.6/.0043 | 280/340 300/408 | High Ultra High |
| 2 Plate | 850/375 | 3.7/1.7 | 17.8/.0052 | 500/680 600/816 | High Ultra High |
| 3 plate | 850/375 | 4.4/2.0 | 22.0/.0065 | 750/1020 900/1224 | High Ultra High |
| 4 plate | 850/375 | 5.2/2.3 | 25.3/.0074 | 1000/1360 1200/1532 | High Ultra High |
- Model: 5.5" OT-lll
