Derailleurs & Mechs

Shimano SM-AD17 Clamp Band Adapters for mounting 34.9mm front derailleurs to frames with 31.8mm or 28.6mm diameter Frame Mounts. Specifications Use: MTB/Trekking Model: SM-AD17-S (28.6mm) and SM-AD17-M (31.8mm) Dimension: 28.6...