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Shimano Dura-Ace Di2 FD-R9150 SM-AD91 Clamp Band Adapter - 34.9mm - SMAD91L

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£16.99
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Details
Shimano clamp band to mount Dura Ace (Di2) / Ultegra (Di2) blaze-on front derailleur to frames with 34.9mm diameter without braze-on socket.
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Questions & Answers (2) Q & A
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Questions & Answers (2)
Hello, will this work for the new Ultegra FD-R8150 Di2 braze-on Front Derailleur? Thanks
By
13 Feb 2026
Hi
Thank you for your enquiry. Yes, this would be suitable for your derailleur but you will need to check that your seat tube diameter is 34.9mm.
Kind Regards. JP 16/02/26
can i use this with a 105 5800 FD?
By
15 May 2020
Hi, no as this is DI2, Shimano recommend SM-AD90 which is our part 5931 in 34.9mm.

Thanks