Installation is simple, just connect the original front fork rod.Four bolt rod securely fix the rod in place.Made of high-strength CNC machined 6061 T6 aluminum alloy.The universal short handle rod is suitable for most road bikes, stationary bikes, mountain bikes, downhill bikes, track and field bikes, , , , etc.Handlebar center diameter: 25.4 mm (1 inch)Stereo tube diameter: 28.6mm (1-1/8inch)Length: 32mm / 60mmWeight: 160gStyle: High-strength stemColour: blackMaterial: aluminum alloySize: 3.18 x 3.5CMPackage Contents:1 x mountain bike stemOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.