AlphaMoto Silver SOLID BILLET BAR END MIRROR 3" ROUND GSXR ZX CBR R1 R6 Honda Suzuki The listing for : Silver SOLID BILLET BAR END MIRROR 3" ROUND GSXR ZX CBR R1 R6 Honda Suzuki These mirrors are made of a frame that will resist vibrations The mirrors are 3" (76mm) Diamater and have bar ends that will fit standard hollow 7/8" Installation is fairly simple and pretty straight forward. This mirror is universal , not particularly made for certain bike, please make sure your bike use hollow round 7/8" handlebar.