COMET 108-EXP Drive Clutch Part No. 219500A 30mm 1:10 Designed for more power, more endurance, more of everything you need for speed - and now accept OEM starter rings for electric starters Tried, tested and built to handle high-horsepower engines Consistently smooth shifting even after hours of use Wider rollers for increased bearing area (33% more) 1997 and newer 108-EXP clutches include special recessed mounting bolt with special pilot washer Each features a bushing in the movable face and redesigned fixed face for increased durability Uncalibrated clutches are sold without cam arms and spring