These 2″ Spike handlebar risers for HARLEY, TRIUMPH, XS650, BOBBER, CHOPPER and other custom bikes. These Risers are machined out from Solid Billet Aluminum then mirror polished and have natural colour. bolts included 1/2″ X 13 Threads. fits 1″ handle bars, you can use our spacers for other sizes. All measurements, threads and bolts can be followed by your demands.