The Shimano FC-M311 Altus chainset is a versatile and reliable choice for cyclists seeking a performance-driven upgrade for their mountain or hybrid bike. This triple chainset offers a wide range of gear ratios, allowing you to conquer challenging terrains with ease.

Hyperdrive SG-X Chainrings for Seamless Shifting

Experience the smooth, precise shifting that Shimano is renowned for with the Hyperdrive SG-X chainrings. These durable steel chainrings are optimized for 7/8-speed compatibility, ensuring effortless gear changes while maintaining durability.

Square Taper Bottom Bracket Compatibility

This chainset is designed to work seamlessly with 123mm square taper bottom brackets, ensuring a secure and stable connection between the crankset and the frame. This compatibility makes it a great choice for a wide variety of bikes, making it an ideal upgrade for your existing ride.

• 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