Shimano FC-M311 Altus, square taper, chainset

Description

• Entry level 7/8-speed 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
• Two version available with or without chain guard