3D forged 7050-T6 aluminum alloy stem is designed with a variable thickness oval section and reinforced with unidirectional carbon fiber Twin, opposed-direction steerer clamp bolts (great for carbon steerers) Black with red/silver graphics. 165g (100mm) TECH SPECS steerer dia. 1-1/8" bar dia. 31.8mm rise +/-6 deg length 100mm color black