I have installed a high performance cam in my Harley-Davidson. Do I have to add a high performance clutch for the extra power the engine puts out?
The stock H-D clutch assembly will handle up to 80-85 horsepower, provided the clutch plates and springs are in excellent shape. Depending upon your driving style, bolt-in cams will not cause you to change your clutch. Highly modified engines do require changes to the clutch. Additional friction area needs to be added by use of an ‘extra plate’ clutch pack assembly or changing to plates with additional friction area. Several vendors can provide high performance clutch components or a replacement clutch. Barnett’s extra plate clutch with a heavy duty spring is an excellent choice for a street bike.
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