Description: Specifics: Handlebar diameter: 31.8mm (1-1/4"), Stereer Tube diameter: 28.6mm (1-1/8"), Length: 70mm (center distance of the two holes), Weight: 170g. Application: Universal handle bar stem suitable for most road bike, fixed gear bicycle, mountain bikes, downhill bike, track bike, MTB, BMX, DH, etc. Material: Constructed of high strength CNC machined 3D forged 6061 aluminum alloy/T6 hardened, durable, lightweight. Easy installation: just connect up the front fork, handlebar. Four bolt bar clamp holds bar securely in place, no slipping. Suitable for modified, DIY, upgrade the bike. The bicycle stem not only helps to reduce the amount of tilting when riding a bicycle but also gives better control over the ability to steer. Specification: Material: 6061 Aluminium Alloy Length: 70mm Rise: 17 Height: 32mm Fit for handlebar: 31.8mm Fit for stereer tube: 28.6mm Weight: about 170g Package Includes: 1x Bike Stem Note: Please allow slightly errors due to manual measurement and different monitors.