●Fit for Handlebar diameter 25.4 mm (1)(31.8mm is not suitable), front fork stem diameter 28.6mm (1-1/8"), Length: 60mm (center distance of the two holes) ●Angle: +/- 35 degree.help to up or down the heigth of handlebar. ●Light weight and durable. Weight.106g(0.23lb) ●Constructed of high-strength CNC machined 6061 T6 aluminum alloy. ●Suitable for most road bike, mountain bikes, track bike, MTB, BMX, DH, etc.Please be note that this stem is only suitable for 25.4mm handlebars.