Shimano Altus FC-M171/M311 Cranksets

Chainguard integrated design. Hyperdrive SG-X chainrings. Chainguard model.

Item Specifications: Color, Black, Spindle Interface Type, Square Taper JIS, Pedal Spindle, 9/16", Chainring BCD, Riveted, Rings, 42/32/22, BB Included, No, Crank Intended Use, Mountain, Defined Color, Black, Crank Length (mm), 170, Drivetrain Speeds, 7, Drivetrain Speeds, 8, Number of Chainrings, Triple, Chainline/Hub Compatibility, 135/142 MTB Hubs,

Shimano Altus FC-M311 Crankset 7 Speed 170mm Riveted 42/32/22t Black

Reference Number: 5N87V0

Upgrade Your Mountain Biking Experience with the Shimano Altus FC-M311 Crankset - 170mm, 7/8-Speed, 42/32/22T Riveted Chainrings

Enhance your MTB setup with the Shimano Altus FC-M311 Crankset, expertly engineered for reliable performance and smooth shifting on rugged trails. Crafted from durable aluminum crankarms and equipped with steel SG-X chainrings, this crankset ensures longevity and efficient power transfer, making it an essential component for mountain biking enthusiasts seeking durability and precision.

Materials & Engineering

Constructed from high-strength aluminum, the Altus FC-M311 crankarms deliver lightweight robustness optimized for mountain biking. The riveted steel SG-X chainrings-available in 42/32/22 tooth configurations-offer exceptional durability and precise engagement, even under the toughest riding conditions. Designed with a proven 3-piece construction, this crankset provides a sturdy, reliable platform for aggressive trail riding.

Performance & Components

Featuring Hyperdrive integrated SG-X steel chainrings, the FC-M311 ensures crisp, responsive front shifting across 7 or 8-speed drivetrains. The 50mm chainline and 187.9mm Q-factor maximize pedal clearance and rider comfort, while the 170mm crank length offers an optimal balance between power and maneuverability. Please note, the bottom bracket is sold separately, allowing you to customize your setup for perfect compatibility.

Style & Use Case

Designed for mountain biking, this crankset combines a sleek black finish with a functional, performance-oriented design. Its rugged construction and attention to detail make it ideal for trail, cross-country, and all-mountain riders who demand reliable shifting and efficient power transfer in challenging terrains.

Innovative Features & Compatibility

- Chainguard model enhances chain retention and protects components from debris

- Compatible with 135/142 MTB hubs, suitable for a wide range of mountain bike frames

- Square Taper JIS spindle interface ensures compatibility with numerous bottom brackets

- Pedal spindle size: 9/16", compatible with most mountain bike pedals

- Stylish, functional design tailored for mountain biking enthusiasts seeking durability and high performance

Upgrade your mountain bike with the Shimano Altus FC-M311 Crankset for confident climbs, fast descents, and reliable shifting on every trail. Perfect for riders looking for a durable, high-performance crankset that combines innovative engineering with proven Shimano quality.

  • Durable aluminum crankarms combined with steel SG-X chainrings deliver reliable and smooth front shifting for mountain biking and off-road adventures.
  • Hyperdrive integrated steel chainrings ensure precise gear changes, optimized for 7/8-speed drivetrain compatibility, enhancing overall ride performance.
  • Designed with a proven 3-piece construction, the Shimano Altus FC-M311 crankset offers a sturdy build and easy maintenance, with a versatile 170mm crank length ideal for mountain and hybrid bikes.
  • Features a 50mm chainline and 187.9mm Q-factor, providing optimal clearance and pedaling efficiency for rugged trail use and mountain biking applications.
  • Includes a chainguard model for added protection and cleaner aesthetics, making this crankset an excellent choice for riders seeking durability, style, and dependable shifts in demanding riding conditions.
Item Specifications
Rings42/32/22
Number of ChainringsTriple
Drivetrain Speeds7
Drivetrain Speeds8
Chainring BCDRiveted
Chainline/Hub Compatibility135/142 MTB Hubs
ColorBlack
Crank Length (mm)170
Crank Intended UseMountain
BB IncludedNo
Pedal Spindle9/16"
Spindle Interface TypeSquare Taper JIS
Defined ColorBlack

Why 365 Cycles?

365 Cycles is an Authorized Shimano Dealer, and we offer the Full Shimano Warranty!

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Shipping & Handling

Most orders placed during the workweek before 1:30 pm EST ship the same day, but in rare cases (peak season/holiday periods) handling time can take up to 48 hours. If you have questions regarding shipping estimates, please let us know prior to placing your order. There is a direct signature requirement for all orders over $500.

Please allow 1-2 business days for your order tracking to update.

  • Cut off for SAME DAY SHIPPING- 1:30 pm EST Monday - Friday
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Combined Shipping Discounts

To offer customers savings on shipping, we offer discounts when shipping multiple items from our store. We cannot issue refunds on shipping once an order is finalized so please follow the 5 steps below and ask if you are having trouble with the discount before you make a purchase.

  1. Be sure you are using the US site: https://www.ebay.com
  2. Select Add to Cart (instead of Buy It Now) with items from our store 365Cycles
  3. Click on Proceed to Checkout. On the checkout page, the shipping service on each line item needs to match
  4. Compare First Class vs Priority as sometimes Priority can be cheaper and it gets to you faster!
  5. You’ll need to change the shipping method to Priority on every item in your cart before the rate can be calculated.

Returns

365 Cycles offers returns for 30 days on new items in their original, intact packaging. Return shipping for ALL orders are to be paid by the buyer. Please be sure to read our return policy entirely and if you have any questions, please contact Customer Service.

Full refunds are issued on items that are brand new and we are able to resell as new. 365 Cycles reserves the right to deny returns that are outside of policy including, but not limited to, used items, items missing original packaging, items with damaged manufacturer packaging, or international orders. Return orders must be shipped in a box or bubble mailer. Items shipped without an outer box will incur a restocking fee. You will be contacted through eBay if your return is ineligible for a full refund.

Returns must be initiated within 30 days from purchase date through your Purchase History under My eBay.

If we make an error in shipping, please contact us -- we will ship out the correct item and provide a free prepaid return label as quickly as possible!

Exchanges

If you need to exchange your order, the fastest and easiest way to do this is to reorder. We will ship your new order immediately and, in the meantime, please initiate a return through eBay on the original item and return it. We will refund for the returned item once it is received back.



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Company Details

365 Cycles
1180 Enterprise Rd
East Petersburg, PA 17520
United States

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