Shimano Altus FC-M315 chainset 36/22, 7/8-speed, black, 170 mm, without chainguard
Description
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
