Specialized S-Works Mountain Crank Arms
Best premium performance upgrade for dedicated cross country racers
These high-performance carbon crank arms deliver exceptional stiffness and a superior strength-to-weight ratio for demanding trail riding. Designed for efficiency and durability, they feature a hollow construction and an oversized spindle interface to ensure reliable power transfer on every climb and descent.
$400.00
at
UC Cyclery
More S-Works options
Who it's for
- Competitive racers seeking maximum efficiency and explosive acceleration
- Weight-conscious cross-country riders looking to shave every possible gram
- Boutique bike owners who prioritize a clean and sophisticated appearance
Who should skip it
- Budget-conscious cyclists looking for the best value-to-performance ratio
- Riders with non-standard frames who prefer universal component compatibility
- Aggressive trail riders frequently navigating technical and rocky terrain
Performance breakdown
Power Transfer Efficiency
Oversized spindle and stiff carbon construction ensure zero wasted pedal energy.
Weight Optimization
Fourth-generation hollow design keeps rotational mass impressively low for climbing.
Maintenance Simplicity
Self-extracting bolt system makes crank removal quick and frustration-free.
Structural Rigidity
Carbon layup provides exceptional stiffness under high-torque aggressive trail riding.
Installation Versatility
Limited to specific bottom bracket standards and single or double setups.
Durability
Robust materials withstand the inevitable rock strikes of technical mountain terrain.
Key Specs
Material
Carbon fiber arms, Aluminum spindle
Crank Arm Length
175 mm
Bolt Circle Diameter
104 mm
Bottom Bracket Compatibility
73mm shell, Pressfit 30
Intended Use
Mountain biking
Set Includes
Hardware for Pressfit 30
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