Presentation packaging, 1 1/8", handlebar clamp 31.8 mm, angle from -20° to +60°, black anodised For 1 1/8" internal Ø 25.4 mm of threaded steerer tube, adjustable height 80 mm, 3D forged aluminium, tool-free twist function adjustable in seconds, with quick-release lever and control knob, with SDS front cap for SDS Links / adapters, from 620 g Features Twist function, adjustable Main colour black Area of application MTB, road bike Steerer tube clamp diameter 1 1/8" Handlebar clamp 31.8 mm Type/kind of article Version A-head Stem angle up to 60° Stem angle from -20° Stem length 88.0 mm