Murdock Pullback Risers - Chrome Murdock risers for Harley big twins are available in straight and pullback models and a broad range of rises. Investment-cast clamps, TIG-welded Chromoly uprights and CNC lathe-turned mounting bases create a handlebar riser with unrivalled stiffness and strength for aggressive, technical and high-speed riding. Technical Details Investment-cast one-piece steel bar clamp accepts 1-inch O.D. handlebars 0.120-inch (3mm) wall x 1" O.D. 4130 Chromoly uprights CNC lathe-turned mounting bases accept 1/2-13 t.p.i. stock and aftermarket mounting hardware Mounting holes on 3.5-inch centers to fit most stock and select aftermarket H-D fork trees Pullback Murdock risers feature mandrel-bent uprights for two inches of rearward bar offset—perfect for reducing reach for shorter riders TIG-welded and hand polished before polishing Black electroplate and mirror chrome-plated finishes available Stainless-steel 5/16-18 t.p.i. bar clamp hardware