Heavy Primary Clutch Tuning Rivets
Schmidt Bros Motorsports exclusive, high performance, heavy tuning rivets that are cast right here, in our shop. Add weight in the meat of the power for increased power levels, whether naturally aspirated or boosted. Yamaha makes tuning rivets in the range of 0.85-4.5 grams each. Ours pickup where theirs leave off and range from 4.6-9.5 grams each. Talk with Chris and he will specify approximate gram weight when ordering or just buy them a little heavy and tune them yourself.
These are a must to keep your engine in the proper RPM range.