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 a range of tuning rivets of between 0.85-4.5g. Ours pickup where theirs leave off and range from 5-9g. Specify approximate gram weight when ordering or just buy the heaviest available and tune them yourself.
These are a must to keep your engine in the proper RPM range.