Shimano Dura-Ace Front Derailleur Braze-On Adaptor SM-AD91 Adapter - 34.9mm

BikeTiresDirect$21Buy

The creators who use it, or GearCred, may earn a commission when you buy through these links, at no extra cost to you.

From BikeTiresDirect

This Shimano Front Derailleur Adapter allows Dura-Ace Di2 9150 front derailleurs to be mounted on frames that don't have braze-on mounts built in. The clamp is available in various sizes for compatibility with various seat tube diameters. | Shimano Dura-Ace Front Derailleur Braze-On Adaptor SM-AD91 Adapter - 34.9mm