- Compatible with Dura-Ace Di2 braze-on adapters
- Easy to install on 31.8mm or 28.6mm seat tubes
- Durable construction for long-lasting use
The Shimano SM-AD91 Clamp Band is a versatile and reliable accessory designed for use with Dura-Ace Di2 braze-on adapters. This clamp band is easy to install on both 31.8mm and 28.6mm seat tubes, providing a secure and stable mounting solution for your Di2 components. With its durable construction, this clamp band ensures long-lasting performance and peace of mind during your rides. Upgrade your bike setup with the Shimano SM-AD91 Clamp Band for a seamless and efficient Di2 integration.

In this rapidly changing world, everyone is seeking a healthier and more enriched lifestyle. While it is important to accept changes proactively, we must also adhere to something basic, and something unchangeable, upon which we should create new value. Shimano hopes to help realize such a wonderful lifestyle by offering bicycle components, fishing tackle, and rowing equipment.
Taking advantage of original technologies and a wealth of experience accumulated throughout Shimano’s long history, they develop innovative products that go beyond the expectations of cyclists, anglers, and rowers. Shimano believe that their Captivating Products should feature not only exceptional quality and performance, but also a fascinating design that appeals to respective users’ sensitivities at first touch.
Click & Collect Available
• In-stock items usually ready in 4 hours* • Online Only items usually ready in 1-3 working days More info »
Courier Delivery Available
• $9.99 for orders $99 & under • Free for orders over $99 • Bulky shipping fees apply for bikes & bulky items based on item weight More info »