X
1.800.651.4050 Mon-Sat 8am-5pm PT
FREE SHIPPING ON ORDERS OVER $50More info
JOIN OUR EMAIL LIST
Search
WISH
0
CLICK HERE to join our Email List and get 15% off your first order*
*Restrictions Apply. Click for details.

Crumbs

Product Images

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

Shimano Dura-Ace Front Derailleur Braze-On Adaptor

Pricing and Order Section

Mfg PartNum:
rating(8)
Earn $0.90 in Rewards credit. Click to Learn More.
90
POINTS
Sale
$14.95
MSRP: $16.99
SAVE 12%
In Stock
This size is not eligible for Rewards points
Price matches are is not eligible for Rewards points
pricematch tag
InstantPrice MatchWhat is this?
Free Shipping on Orders Over $50*
 

Description

Shift and adapt.

To use a Dura-Ace 9150 Di2 Front Derailleur on a frame without a braze-on mount, simply clamp this Shimano adapter around your seat tube, and voilÃÆ' , you're ready for some unprecedentedly crisp front shifting.

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

Specifications

SM-AD91 Adapter - 34.9mm

Mfg PartNum: ISMAD91L 

SM-AD91 Adapter - 31.8mm w/28.6 Adapter

Mfg PartNum: ISMAD91MS 

Reviews

Ordered by Most Relevant First
5 stars
4 stars
3 stars
2 stars
1 stars
(7)
(1)
(0)
(0)
(0)
(88%)
(13%)
(0%)
(0%)
(0%)
Exactly what I needed
rating
by Goldmund
Cycling Enthusiast
Brooklyn, NY

Does the job!

Reviewed 2/3/2023
Was this review useful to you? Yes/No
Thank you for your feedback.
GRX Required Adapter
rating
by D. Walker
Cycling Enthusiast
Portland, OR
1 of 1 customers found this review helpful.

Recently upgraded to a GRX front derailleur and crankset to get rid of some tire rubbing issues I was having with an older dura ace front derailleur. Problem solved with the upgrade but I wish Shimano made an option to purchase together with the derailleur instead of separate parts.

Reviewed 5/11/2021
Was this review useful to you? Yes/No
Thank you for your feedback.
It works
rating
by delbiker
Cycling Enthusiast
south coastal Delaware

It's a derailleur clamp and does what it is supposed to do.

Reviewed 9/22/2020
Was this review useful to you? Yes/No
Thank you for your feedback.
High quality part.
rating
by Dale
Cycling Enthusiast
Charleston, WV
0 of 6 customers found this review helpful.

You don't want critical components of your bike to fail while far away from your car. This clamp is critical to mission success. It is built to the exact standards that will not fail you.

Reviewed 3/2/2019
Was this review useful to you? Yes/No
Thank you for your feedback.
Perfect
rating
by Andre
Cycling Enthusiast

Perfect, works as intended and looks pretty good as well

Reviewed 5/17/2024
Was this review useful to you? Yes/No
Thank you for your feedback.
Great!
rating
by Anonymous
1 of 1 customers found this review helpful.

Works as described. Used it to install new GRX front mech on my Macho Man disc!

Reviewed 6/19/2020
Was this review useful to you? Yes/No
Thank you for your feedback.
Great fit and finish. Does what it is supposed to do.
rating
by HampstenTi
Cycling Enthusiast
Sacramento, Ca

Great Shimano fit and finish. Reasonable price. Functions as it should.

Reviewed 6/18/2020
Was this review useful to you? Yes/No
Thank you for your feedback.
Works and fits as intended
rating
by Anonymous

Bought to outfit 2002 Lemond steel frame bike. Fit and functioned as intended.

Reviewed 5/31/2021
Was this review useful to you? Yes/No
Thank you for your feedback.

Articles

Articles will open in new tab.

Comparing bottom bracket types and standards.
You wanna go fast? Join the ceramic revolution!
Make your upgrades count. Here's the equipment that will help you ride your bike faster.
What to consider when selecting a crankset for your road bike.
additional content loading
additional content loading
additional content loading