Pully bolts snapped at 50mph and almost killed me. No more grade 5's. Use grade 8. Should not leave factory with *** cams and bearings and gaskets and clutches etc. These weekend guys might take 10 years to hit 20k. I did it i 2 and my bike needs everything. Take pride and build shut right. Check the forums. Somebody is gunna die riding a harley do to manufacturing. User's recommendation: Nope.