| Model | ULTEGRA R8101 |
| Practical | ROAD |
| Reference supplier | ICSR810112134 |
| Number of compatible speeds | 12 |
| Assembly | HG - L |
| Matter | Acier |
| Pinion technology | HyperGlide+ |
| Flooring | 11 - 34 dents |
| Gear details | 11-12-13-14-15-17-19-21-24-27-30-34 |
| Main colour | Silver |
| Weight in grams | 345 |