Clutch pads: I’ve built 5, 66/80cc two-stroke motor bikes, and have never had a clutch pad issue. I treat them right and don’t cowboy the bike, although once it engages after peddle starting the bike, it’s full throttle from that point forward. My bikes run 38–42 mph on radar and I have never had clutch related issue. They are a blast to drive and get a lot of attention whether you are riding or they are parked. No, full throttle burn out style Fast take offs as you would with a motorcycle, these 66/80 cc motor clutches are not made for that kind of abuse. If you do trouble will be lurking. Go Man Go