CS-R8100-12 (11-30T)
| Series | ULTEGRA | ||
|---|---|---|---|
| Model no. | |||
| Type | HYPERGLIDE+ | ||
| Rear speeds | 12 | ||
| Compatible chain | HG 12-speed | ||
| Combination name (Group name) | 11-30T, 11-34T | ||
| Combination * Titanium gear | 1 | 11-12-13-14-15-16-17-19-21-24-27-30T | |
| 2 | 11-12-13-14-15-17-19-21-24-27-30-34T | ||
| 3 | - | ||
| 4 | - | ||
| 5 | - | ||
| 6 | - | ||
| 7 | - | ||
| Spline type | MICRO SPLINE | - | |
| HG spline L2 (ROAD 12-speed dedicated) | ✔ | ||
| HG spline L (ROAD 12/11-speed) | - | ||
| HG spline M (10/9/8-speed, MTB 11-speed, 7-speed CS-HG400/HG210) | - | ||
| HG spline S (7-speed) | - | ||
| Carbon spider arm | QTY (pcs) | - | |
| Finish | - | ||
| Aluminum spider arm | QTY (pcs) | 2 | |
| Finish | - | ||
| Steel spider arm | QTY (pcs) | - | |
| Finish | - | ||
| Titanium gear | QTY (pcs) | 0 | |
| Finish | - | ||
| Aluminum gear | QTY (pcs) | 0 | |
| Finish | - | ||
| Steel gear | QTY (pcs) | 12 | |
| Finish | Nickel plated | ||
| Lock ring | Material | Aluminum | |
| Finish | Anodized | ||
| Average weight (g) | 291 (11-30T) 345 (11-34T) | ||
| Note | |||