Zipp Service Course Stem - 90mm 31.8 Clamp +/-6 1 1/8" Silver. 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.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
- TECH SPECS
| Stem Angle (deg) | +6 |
| Stem Angle (deg) | -6 |
| Length | 90 |
| Bar Clamp Diameter (mm) | 31.8 |
| Color | Silver |
| Material | Alloy |
| Defined Color | Silver |
| S.H.I.S. Stem Clamp Diameter | 28.6 |