Viper FCDC-KIT#45 Unassembled 4-Disk Clutch Kit - 3/4" Bore - High Torque RacingMulti disk power multiplication is essential for high torque applications, which is why serious racers trust our go karts and parts selection for the Viper FCDC KIT#45 Unassembled Four Disk Clutch Kit. Engineered specifically for 3 4" bore applications, this kit delivers raw, uncompromising power transfer to the track. By building the clutch yourself, you gain absolute control over engagement pressures and spring rates, eliminating the stock