Shimano Altus FC-M311 cranksets feature aluminum crankarms with steel SG-X chainrings for smooth and reliable shifting.
- Hyperdrive integrated SG-X steel chainrings provide precise and reliable front shifting
- Proven 3-pc. design with sturdy aluminum crank arms (bottom bracket sold separately)
- 50mm Chainline / 187.9mm Q-factor
Product Specifications
Check all technical specifications