Shimano XTR M9100 Crank Arms
Best high performance choice for dedicated cross country racers.
These crank arms deliver a professional-grade balance of stiffness and weight reduction for serious trail riders. The modular design allows for seamless chainring swaps, making it easy to tune your gearing for any terrain without replacing the entire crankset.
$298.40
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Who it's for
- Weight-conscious cross-country racers seeking maximum climbing efficiency
- Competitive athletes demanding immediate responsiveness during high-intensity sprints
- Versatile riders who frequently transition between different trail types
Who should skip it
- Budget-conscious mountain bikers looking for the best value-to-performance ratio
- Aesthetic-focused riders who want their gear to remain pristine
- Home mechanics who prefer using standard universal tools
Performance breakdown
Power Transfer Efficiency
Hollowtech II construction delivers near-instantaneous energy transfer to the drivetrain.
Weight-to-Stiffness Ratio
Elite-level engineering keeps the rotating mass impressively low without sacrificing rigidity.
Maintenance Simplicity
Direct-mount interface makes swapping chainrings a quick, tool-friendly process.
Drivetrain Versatility
Adapts easily to single or double setups for varied terrain demands.
Build Durability
Rugged aluminum construction withstands the harsh realities of technical trail riding.
Compatibility Range
Standard 24mm spindle ensures seamless integration with most modern mountain frames.
Key Specs
Crank Arm Length
175 mm
Intended Use
Mountain Biking
Drivetrain Speed Compatibility
12-speed
Bottom Bracket Interface Type
Hollowtech II
Material
Aluminum
Chainring Mount Type
Direct Mount
Number of Chainrings
1
Spindle Diameter
24 mm
Q-Factor
162 mm
Power Meter Included
No
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