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
| Rings | 48/38/28 |
| Number of Chainrings | Triple |
| Drivetrain Speeds | 8 |
| Chainring BCD | Riveted |
| Chainline/Hub Compatibility | 135/142 MTB Hubs |
| Color | Black |
| Crank Length (mm) | 170 |
| Crank Intended Use | Mountain |
| BB Included | No |
| Pedal Spindle | 9/16" |
| Spindle Interface Type | Square Taper JIS |
| Defined Color | Black |
| Crank Length | 170Mm |
| Chainrings | 48/38/28T |
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