XKMT GROUP Motorcycle Chromed Spike Handelbar Pullback Risers 1" (25mm)Hole 6"Rise 9"Overall Height For Yamaha V-Star 650 1100 Classic Custom Silverado/ Road Star 1600 1700 High Quality Billet Handlebar Risers Custom Spike style with hidden clamp bolts,Eliminate the handlebar top clamp with precision machined billet risers,Mount with coarse thread riser bolts. Size: Hole Diameter: 1"/ 25mm, Total Height: 9", Height from bottom to center of hole: 6" Condition: 100% Brand New ,Quantity:1 Pair (2 PCS),Mounting bolts are included,No include install instructor THIS SET IS MADE FOR 1 INCH HANDLEBARS ONLY,These are aftermarket risers and will not fit on some models,Inspect your bikes design and determine if these will fit before purcashing?Use the measurements above to determine if the risers will fit