Wheels Manufacturing Shim for 1-1/8 Derailleur on 1 Seat Tube

Derailleur shims for adapting front derailleur clamps to a different sized frame seat tube.Derailleur = the size of the clamp on the front derailleur you haveFrame = the size of the seat tube the derailleur plus shim will fitFront Derailleur Clamp28.6 (1-1

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