DURA-ACE DI2 Front Derailleur Clamp Band Adapter

For installing SHIMANO braze-on front derailleurs to frames requiring a band clamp, the DURA-ACE SM-AD91 is available in 28.6/31.8mm and 34.9 sizes.

FEATURES

• Clamp band diameter: 31.8/28.6* mm, * with multi clamp band
  

SKUs
Product Code: ISMAD91MS (28.6/31.8mm)
Product Code: ISMAD91L (34.9mm)