The zero 100 team 70 degree stem is the best stem for track racing from deda it is a fully 3d forged stem made from 2014 alloy with a 70 degree angle drop for the best pistard in the world the fork steerer clamp is 40mm tall with a 1 18 clamping diameter the handlebar clamp is 317mm in diameter and the stem has crmo screws throughout it comes in anodized black with a white logo and is available with either 90mm 100mm 110mm 120mm 130mm or 140mm lengths