Shimano Altus FC-M311 Crankset - 170mm | 7/8-Speed | 48/38/28t | Square Taper
Cranksets
Shimano Altus FC-M311 Crankset - 170mm · 7/8-Speed · 48/38/28t · Square Taper
Shimano Altus FC-M311 Crankset - 170mm | 7/8-Speed | 48/38/28t | Square Taper
The Shimano Altus FC-M311 is a 3x7/8-speed MTB crankset built for mountain bikes and commuters that need reliable, wide-range gearing without a high price tag. Read the overview
At a glance
- Speed
- 7/8-speed
- Chainrings
- 48/38/28t (steel, riveted)
- Arm length
- 170mm
3 in stock
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Overview
What Makes the Shimano Altus FC-M311 a Reliable Triple Crankset?
The Shimano Altus FC-M311 is a 3x7/8-speed MTB crankset built for mountain bikes and commuters that need reliable, wide-range gearing without a high price tag. Aluminum crank arms keep weight reasonable while the riveted steel chainrings deliver the wear resistance and front shift quality that daily riding demands. The 48/38/28t range covers everything from a trail climb to a daily commute.
Square taper bottom bracket interface. A compatible BB is required and sold separately (check your frame for 68mm or 73mm shell width). Riveted chainrings are not replaceable individually. Compatible with 7- and 8-speed Shimano MTB drivetrains. MPN: EFCM311C888XL.
All the specs
- MPN
- EFCM311C888XL
- Arm Length
- 170mm
- Chainrings
- 48/38/28t (steel, riveted)
- Speed
- 7/8-speed
- Interface
- Square taper
- Chainline
- 50mm
- Q-Factor
- 187.9mm
- Arm Material
- Aluminum
- Chainring Material
- Steel (riveted, not individually replaceable)
- BB
- Not included (square taper required, 68/73mm)
FAQ
Good questions
Get to know Shimano

There's more to Shimano than this one product. Our Shimano page has the full Shimano lineup we carry and more about the brand.
Visit the Shimano page →Does a bottom bracket come included?
No. The FC-M311 requires a separate square taper bottom bracket. Check your frame's BB shell width (typically 68mm or 73mm MTB) and spindle length before ordering.
Can I replace the individual chainrings on the FC-M311?
No. The chainrings on the FC-M311 are riveted in place and are not individually replaceable. When the rings are worn, the full crankset needs to be replaced.
What drivetrains is the FC-M311 compatible with?
The FC-M311 is compatible with 7- and 8-speed Shimano MTB drivetrains using a matching 3x front derailleur and 7- or 8-speed rear shifter and cassette.
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