Shimano SM-AD91 Clamp Band Dura-ace DI2 Braze-on Adapter

The Shimano SM-AD91 Clamp Band adapts braze-on front derailleurs to frames without built-in mounts. Made from lightweight alloy, it provides stiffness and a perfect fit for Dura-Ace Di2 setups.

Key Features

• Braze-on adapter clamp for front derailleurs.

• Compatible with Shimano Dura-Ace Di2.

• Lightweight alloy construction.

• Ensures stable, precise derailleur positioning.

• Ideal for Di2 conversions and upgrades