Lightweight 3D forged, CNC machined 6061 aluminum, plated CrMo bolts For MTB or Road use. 4-bolt forged alloy handlebar clamp Flip-flop 84/6 degree. 139g (100mm) TECH SPECS steerer dia. 1-1/8" bar dia. 31.8mm rise +/-6 deg length 120mm color black