SB-packaged, 1 1/8", 31.8 mm handlebar clamp, angle adjustable from -20 to +60°, black anodized for 1 1/8" threaded steerer tube with inner steerer tube diameter 25.4 mm, height adjustment range 80 mm, 3D forged aluminum, quick and tool-free twist function, with quick-release lever and control knob, with SDS front cap for SDS left/adapter, from 620 g Article version Ahead Features Twist function, adjustable Area of use MTB, racing bike Main color black Handlebar clamp 31.8 mm Stem clamp 1 1/8" Stem length 103.0 mm Stem angle up to 60° Stem angle from -20°