Shimano AD17M Front Deraileur Adapter / Shim 34.9 Clamp to 31.8 Seat Tube

Shimano AD17M, Front Derailleur Clamp Band Adapter - Small - 34.9 - 31.8mm. Shimano Clamp Adapter. Compatible With Many Shimano Derailleurs & 31.8mm Seat Tubes.

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