Biltwell handlebars are precision crafted with 100% seamless 4130 chromoly. The wall thickness of the tubing is a burly .120". All handlebars are now available smooth for custom applications, or with dimples to accomodate original equipment throttle, brake and clutch assemblies. This bar is knurled in the handlebar mounting area. Re-routing control cables may be necessary for installation. This product only fits 1" controls and risers.