Shimano Crankset Altus FC-M311 SquareTaper

Shimano Altus FC-M311 Square Taper Crankset (Black)

Experience reliable triple-chainring performance with the Shimano Altus FC-M311 crankset, featuring rigid 2-piece construction and Hyperdrive SG-X chainrings for smooth shifting.

Key Benefits:

• Hyperdrive SG-X chainring technology delivers crisp, reliable shifts between gears for confident climbing and acceleration
• Optional pre-installed chain guard keeps your legs and pants clean during commutes and casual rides
• Rigid 2-piece aluminum construction provides efficient power transfer while maintaining lightweight performance

Technical Specifications:

• Model: Shimano Altus FC-M311
• Chainring Format: Triple (riveted BCD)
• Spindle Interface: Square Taper JIS
• Crank Arm Lengths: 170mm, 175mm
• Materials: Aluminum crankarms, steel chainrings
• Chain Compatibility: 3/32"
• Speed Compatibility: 7-speed, 8-speed
• Dual SIS compatible

Compatibility:

• Designed for mountain triple drivetrains with square taper bottom brackets
• Suitable for road, hybrid, and MTB applications with 7 or 8-speed systems

Package Contents:

• 1x Shimano Altus FC-M311 Crankset (chain guard optional/selectable)

Important Notes: Bottom bracket NOT included—requires square taper JIS bottom bracket (sold separately). Select crank arm length and chain guard option based on your preferences during ordering