Shimano Altus M311 cranksets provide durability and reliable shifting for triple chainring drivetrains. - Hyperdrive SG-X chainrings - 7/8-speed compatible - Spindle interface type: Square Taper JIS
- Optimum Power Transfer - Best Balance For Lighter Weight (-7G) And Efficiency - New Designed Crank Arm - Maintains High Rigidity And Reduces Weight - Hollowglide - 4-Arm Construction Crankset - Adapted For Race Specific Disc Brake System - Shorter Length Of Rear Center With O.L.D. 135mm - Redesign The Gear Teeth Profile To Fit Wider Gear Pitch - 50-34T/53-39T/54-42T/55-42T/52-36T - Iconic Design - Chain Line: 43.5
SRAM's Apex Crankset is designed for capable stiffness at an impressive weight. The cold-forged aluminum arms are tough, rigid and perfectly complement your favorite ride. SRAM's long-lasting Powerglide chainrings are hard anodized and designed for quick, positive shifting in all conditions. Plus, the Apex crankset comes with SRAM's smooth-spinning GXP bottom bracket.
SRAM's XX1 Crankset gives you less — that adds up to more! Paired with SRAM's 11-speed XX1-specific cassette (sold separately), you get the gearing of a 2- or 3-ring system, with less gear redundancy, less weight, and no front derailleur or chainguide. There's also less clutter on your bars and less chain noise. The cranks themselves are seriously light, too, thanks to carbon arms and a forged spider. But wait! There's less! Dropped chains are a distant memory. The teeth on the ingenious X-Sync rings are shaped to hold onto your chain. With XX1 cranks, less truly is more.
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