get the petroworks performance clutch, it is actually better than the centerforce dual friction, the owner of petroworks was actually able to burn out a dual friction against a wall whereas he was not able to burn out the petroworks one on the same wall......its awsome, I use mine EXTENSIVELY due to no gears in and 26 inch tires and it has never even smelled like it is heating up or anything...word of caution about the petroworks clutch though, while it wont burn out, it does put considerably more wear on your flywheel than the centerforce does.