DURA-ACE DI2 Front Derailleur Clamp Band Adapter - 34.9 mm
For installing SHIMANO braze-on front derailleurs to frames requiring a band clamp, the DURA-ACE SM-AD91 is available in 34.9, and 28.6/31.8mm sizes.
FEATURES
PRODUCT SPECIFICATIONS
| MODEL NO | SM-AD91-L |
|---|---|
| SERIES | ULTEGRA R8000 Series |
| Clamp band diameter (mm)|34.9 | ✔ |
