The Zipp Service Course stem delivers all you look for in a high-performance stem - strength, stiffness, reliability, a precise fit and great visual look. The SC stem offers a new faceplate and body design for greater stiffness and easier installation at a price that meets any rider’s budget. FEATURES: Forged AL-6061 Machined and relieved faceplate Features stainless steel hardware with TORX heads on all bolts for precision torque readings and ease of adjustment Bead-blast Black with laser-etched graphics SPECS: Material: Aluminum S.H.I.S. Stem Clamp Diameter: 28.6 Length: 110 Bar Clamp Diameter (mm): 31.8 Stack Height: 41 Weight: 150 Stem Angle (deg): +6 , -6