doesnt the weight of the rhino affect the clutch. i would figure it weights 3 times as much as a r1 and the heavy duty clutch is needed to prevent slipping. i dont own a r1 rhino, just going off what i read from beforeI I've been doing some research and Most of the guys on the R1 forums (even race bikes) are running the YAMAHA Stock Clutch over the aftermarket ones.