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Shimano Altus FC-M311 170mm Mountain Bike Crankset with Steel Chainrings & Hyperdrive Technology
Reference Number: 4N83V0
Upgrade your mountain bike performance with the Shimano Altus FC-M311 Crankset - a robust, reliable, and precisely engineered component designed for adventurers seeking versatility and durability. Crafted with high-quality aluminum crankarms and steel SG-X chainrings, this crankset ensures smooth, accurate shifting across varying terrains, making it an essential upgrade for adventurous riders.
Materials & Construction
The Shimano Altus FC-M311 features forged aluminum crankarms renowned for lightweight strength and resistance to fatigue. The steel SG-X chainrings are riveted and optimized for durability, delivering long-lasting performance even under tough riding conditions. The black anodized finish not only enhances aesthetic appeal but also offers corrosion resistance, ensuring your drivetrain remains pristine mile after mile.
Performance & Engineering
Designed with proven 3-piece crankset architecture, the FC-M311 delivers optimal power transfer and rigidity. Its 50mm chainline and 187.9mm Q-factor promote efficient pedaling and rider comfort, especially suited for mountain biking, trail riding, and off-road adventures. The Hyperdrive technology integrated into the chainrings provides seamless and precise front shifting, reducing drivetrain noise and increasing efficiency.
Components & Technology
This crankset accommodates both 7- and 8-speed drivetrains with a triple chainring setup (48/38/28 teeth), perfect for versatile terrains from steep climbs to fast descents. The riveted chainrings are compatible with 135/142mm MTB hub spacing, ensuring broad compatibility. The spindle interface is a square taper JIS, fitting most modern mountain bike bottom brackets (sold separately), and designed with a 9/16" pedal spindle standard for reliable pedal compatibility.
Style & Use Case
Designed for mountain biking enthusiasts, the black finish complements any bike aesthetic, from sleek XC rigs to rugged trail warriors. The chainguard model provides additional chain protection, ideal for muddy or rocky conditions. Whether you're conquering technical trails or riding challenging terrains, the Shimano Altus FC-M311 crankset offers the performance, reliability, and style needed for serious mountain biking pursuits.
Innovative Features & Differentiators
- Hyperdrive integrated SG-X steel chainrings for precise shifting
- Triple chainring configuration (48/38/28t) supports versatile gear ranges
- Riveted chainrings for enhanced durability under demanding riding conditions
- 50mm chainline for improved pedaling efficiency and clearance
- Compatible with 7- and 8-speed drivetrain systems
Enhance your mountain bike's performance with the Shimano Altus FC-M311 Crankset - engineered for reliability, optimized for adventure. Whether upgrading your existing setup or building from scratch, this crankset is the perfect choice for rugged, reliable, and stylish mountain biking.
- Shimano Altus FC-M311 Crankset features durable aluminum crankarms combined with steel SG-X riveted chainrings for enhanced strength and longevity.
- Equipped with Hyperdrive advanced technology, this crankset delivers precise and seamless front shifting across 7- or 8-speed mountain bike drivetrains, ensuring reliable performance in rugged terrain.
- Designed with a 50mm chainline and 170mm crank length, it offers optimal clearance and pedal ergonomics suitable for mountain biking and trail riding applications.
- The crankset boasts a sleek black finish and a proven 3-piece construction, providing excellent stiffness, durability, and easy installation on compatible 135/142 MTB hubs (bottom bracket sold separately).
- Ideal for mountain bikers seeking a reliable, high-performance crankset with steel chainrings, this model combines style, engineered performance, and versatility for aggressive trail riding and everyday cycling adventures.
| Item Specifications | |
|---|---|
| Rings | 48/38/28 |
| Number of Chainrings | Triple |
| Drivetrain Speeds | 7 |
| 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 |
Why 365 Cycles?
365 Cycles is an Authorized Shimano Dealer, and we offer the Full Shimano Warranty!
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365 Cycles delivers all your cycling needs fast! We don't waste time preparing your order. Our priority is to serve our customers first and foremost. If you need help picking the right product, have questions about bike component compatibility, or just want to geek out about bikes we are here 7 days a week! Simply put, we are bike experts from dirt to tarmac and want to make sure you get the full 365 Cycles experience when you shop with us.
At 365 Cycles our mission is to simplify the shopping experience. We want to get you the right product in a quick time frame and be here if you need help with questions, warranty, friend to talk to, etc.
We’re dedicated to building lasting relationships with our customers, communities, and team members. We combine the knowledge and service of a traditional bicycle shop with the convenience of shopping in your own home.
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
- Friday afternoon -Sunday orders ship the following Monday
- Due to carrier restrictions orders shipped to: PO Box, HI, AK, & PR 365 Cycles may use a comparable service to what was selected.
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.- Be sure you are using the US site: https://www.ebay.com
- Select Add to Cart (instead of Buy It Now) with items from our store 365Cycles
- Click on Proceed to Checkout. On the checkout page, the shipping service on each line item needs to match
- Compare First Class vs Priority as sometimes Priority can be cheaper and it gets to you faster!
- 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.
