Shimano Altus FD-M313-6 Front Derailleur 3x

Designed for bikes with 3x7 and 3x8 speeds Compatible with Shimano, MicroSHIFT or Btwin for smooth, precise gear changes.

3-speed SHIMANO ALTUS FD-M313-6 front derailleur compatible with all frame diameters.
Diameter: 34.9 mm (or 28.6mm and 31.8 mm with adapter).