Shimano Altus FC-M311 Cranksets feature aluminum crankarms with steel SG-X chainrings for reliable shifting.
- Hyperdrive integrated SG-X chainrings provide precise and reliable front shifting
- Proven 3-pc. design
- 187.9 Q-factor
- Chainguard model
- 175mm
- 7/8-Speed
- 48/38/28t
- Riveted
- Square Taper JIS Spindle Interface
- Black