MUQZI Bike Front Derailleur Conversion Shim 28.6 To 31.8 28.6 To 34.9 31.8 To 34.9mm Front Adapter installation Aperture Adjust

MUQZI Bike Front Derailleur Conversion Shim 28.6 To 31.8 28.6 To 34.9 31.8 To 34.9mm Front Adapter installation Aperture Adjust

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