Wheels Manufacturing Front Derailleur Clamp Shim (1-1/8" to 1-1/4") - DER-SPC2
Wheels Manufacturing Front Derailleur Clamp Shim (1-1/8" to 1-1/4") - DER-SPC2, Wheels Front Derailleur Shim. Features: Allows matching odd size derailleurs to most frame sizes Specs: Adapts:28.6 to 31.8mm