Wheels Manufacturing Front Derailleur Shim Unique

Wheels Manufacturing Front Derailleur Shim
-01 allows a 28.6mm (1 1/8”) clamp to fit on a 25.4mm (1”) tube
-02 allows a 31.8mm clamp (1 1/4”) to fit on 28.6mm (1 1/8”) tube

1-1/8″ to 1″ VENDOR ITEM # DER-SPC
UPC: 836572002438

1-1/4″ to 1-1/8″ VENDOR ITEM # DER-SPC2
UPC: 836572000342