That's what makes it a minibike. Hissing rattling clutch, chain rattling on the chainguard, engine vibrating.:thumbsup: That's their personality. Max torque clutches make more noise than Comets and Fairbanks Morse. I modified an old Max Torque on my Alexander Reynolds though, and its quiet and no rattle or shaking. I described how in my project thread. It would have been easier to buy a Comet, but I just can't resist engineering out of curiosity.