SHIMANO FC-M315 FRONT CHAIN WHEEL
- Entry level 7/8-speed double chainset offering slick hyperdrive shifting performance for off road enthusiasts
- Hyperdrive SG-X chainrings for fast and smooth gear shifts
- 7/8-speed compatible steel chainrings
- For use with 123 mm square taper bottom brackets
- With a 51.8 mm (boost) chainline for use in conjunction with 148 mm O.L.D.