Wheels MFG
Shim for 1-1/4 Derailleur on 1-1/8 Seat Tube
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$1517
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Amazon
1 available in-store, 55 available online
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This is a must have when running SRAM front derailleurs on steel frames!
- Shims a 31.8mm derailleur to fit on a 28.6mm frame
Customer Questions
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Q.
asked by: a guest
how wide is this shim?
A.
anwered by: canteau
The Wheels MFG derailleur shim is roughly 12mm and should work with most Shimano and SRAM front derailleurs.
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Tree Fort ID: 333222349161
Customer Reviews

reviewed by:
SpincrazeeMR2Its flexible enough to bend wide open to fit around the frame and is also very sturdy. No wiggle in the derailleur at all. Its simple and gets the job done.
Works for 31.8 derailleur to 28.6 frame (same measurements as description but in metric)

reviewed by:
parttimemiAs a previous review stated, this is for 31.8 derailleur on 28.6 frame. Used this for my Surly Cross Check build and it worked great! It was simple to use, and well made.

reviewed by:
lionrampantThis shim does exactly what you expect it to do! It takes up that extra space when you are trying to put a 1.25" derailleur on a frame with 1.125" tube.