The SL Sprint Stem is an ideal balance of stiffness and low weightFeatures a stem cap thats designed to be aerodynamically efficient by blending into the stem bodyCarbon Exogram construction delivers the stiffest stem on the market gram for gramFour bolt faceplate uses Torx T25 bolt headsZipp Quickview integrated computer mount available separatelyRoad1-1/8`11031.8-12°Crbn/M-BlackCarbonUPC/EAN/GTIN: 710845861895