Shimano Altus FC-M311 Crankset 170mm 7/8-Speed 48/38/28t Riveted Black

Description

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.