The Shimano SM-AD91 Front Derailleur Collar in 34.9mm is a versatile adapter designed to mount Shimano braze-on front derailleurs to frames that require a band clamp. This adapter ensures compatibility between your frame and front derailleur, allowing you to install high-performance components like Dura-Ace and Ultegra Di2 derailleurs.
Key Features:
- Compatibility: Designed for installing Shimano braze-on front derailleurs to frames requiring a band clamp
- Sizes: Available in 34.9mm and 28.6/31.8mm sizes for various frame diameters
- Derailleur Compatibility: Compatible with Dura-Ace Di2 and Ultegra Di2 braze-on front derailleurs
- Material: Durable construction for reliable performance
- Easy Installation: Allows for quick and secure mounting of front derailleurs to frames without braze-on sockets
Who is it for?
The Shimano SM-AD91 Front Derailleur Collar in 34.9mm is designed for cyclists who have frames that require a band clamp for their front derailleur, but want to use high-performance Shimano braze-on derailleurs like Dura-Ace Di2 or Ultegra Di2.
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