HTT Motorcycle Chromed 1" (25mm) Handlebar Risers Fit 1" handlebars on Honda Suzuki Yamaha Kawasaki Ducati Harley-Davidson Cruisers with detachable bar mounts V-star Road Star Shadow Vulcan Hole Diameter: 1" Custom Round Smooth style with hidden clamp bolts. Eliminate the handlebar top clamp with precision machined billet risers. Mount with coarse thread riser bolts. Fit Honda Suzuki Yamaha Kawasaki Ducati Harley-Davidson Cruisers with detachable bar mounts. Mounting bolts are included.