Zipp Service Course SL StemReady for conquering every mile, this versatile stem comes equipped with a lightweight alloy build that gives it the best balance of stiffness, strength and low weight for wherever your next ride takes you. Zipp has also kitted it out with a robust aluminium faceplate and titanium hardware for an extra level of durability on your road, gravel or cyclocross bike. Benefitting from a 31.8mm bar clamp diameter along with a tapered clamp steerer diameter, it's simple to install for a secure connection between your handlebar and your fork's steerer tube. Weighing in at only 130g, this is a great choice of upgrade for a reliable hold without adding any unnecessary excess grams to your steering setup.Road Bike Stem with SRAM Exogram TechnologySince the introduction of Zipp's line of Service Course and Service Course SL components they've had amazing success with their pro level athletes in all disciplines. While the successes have been proving, they have also drawn from their feedback. Zipp not only learned how and why athletes make their equipment choices, but how their manufacturing methods and materials affect product performance. With new knowledge as well as new engineering, Zipp are proud to introduce our completely redesigned line of Service Course and Service Course SL stems and seatposts.Features: 11/4 Service Course SL - OS (Oversized), shims to 1-1/8 with angle adjustability for ±4° Leading stiffness-to-weight of 1.85g/NM per mm Faceplate and body geometry for greater stiffness and easier installation Stem Angle/Rise: 17 Degrees, 6 Degrees Length (St): 100mm, 110mm, 120mm, 130mm, 70mm, 80mm, 90mm Clamp Diameter: 31.8mm Steerer Clamp Diameter: 1 1/25" - 1 1/8" Material: Al-7075 alloy Hardware: Titanium Weight: 130gBuy Zipp Components from Chain Reaction Cycles, the World's Largest Online Bike Store.