Zipp SL Sprint Stem The Ideal Stem The Zipp SL Sprint Stem is an ideal balance of stiffness and lightweight. The stem weighs in at just 1. 8g per newton meter of stiffness using SRAM's Exogram technology. Designed with feedback from top pros to meet the unrelenting demands of Grand Tour sprinters. Zipp also tapped into expertise gained from its pioneering carbon stems and exhaustively researched the marketplace to create the SL Sprint Stem. The SL Sprint comes with its own stem cap that's designed to be aerodynamically efficient by blending into the stem body. Available in six sizes ranging from 90 to 140mm to meet any rider's fit needs. Features Carbon Exogram construction delivers the stiffest stem on the market, gram for gram Secure with a four-bolt faceplate using Torx T25 bolt heads Available in lengths from 90mm to 140mm SPECIFICATIONSLength90, 100, 110, 120, 130, 140mm Rise12degBar Clamp Diameter31. 8mm Stack-Material Unidirectional Carbon Intended Use Road Weight167g (100mm) | Zipp | Sl Sprint Stem 120Mm