Shimano XTR M9125-1 Crankarms
Best lightweight upgrade for dedicated mountain bike racers.
Engineered for elite performance, these crankarms offer a lightweight, stiff construction that excels on the most demanding trails. Designed specifically for wide-spacing setups, they provide efficient power transfer and smooth operation, making them a top-tier choice for riders seeking precision and reliability in their drivetrain.
$539.99
at
Cambria Bike
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Who it's for
- Competitive racers seeking the ultimate balance of weight and stiffness
- Aggressive trail riders tackling technical and bumpy descents
- Home mechanics who value straightforward component installation and swaps
Who should skip it
- Budget-conscious cyclists looking for the best value per dollar
- Aesthetic-focused riders who want their bike components to remain pristine
- Owners of older mountain bikes with non-Boost rear hub spacing
Performance breakdown
Power Transfer Efficiency
Hollowtech II construction ensures minimal flex during high-torque climbing efforts.
Weight Optimization
Class-leading weight reduction without sacrificing the structural integrity needed for racing.
Maintenance Ease
Direct-mount interface makes swapping chainrings a quick, tool-friendly roadside task.
Pedaling Ergonomics
Narrow 168mm Q-factor promotes a natural, efficient stance for long rides.
Frame Compatibility
Specifically optimized for Super Boost spacing, limiting use on older frames.
Durability
Built to withstand aggressive trail abuse while maintaining precise shifting performance.
Key Specs
Weight
573 grams
Crank Construction
Hollowtech II
Chainline
55 mm
Q-Factor
168 mm
Drivetrain Compatibility
12-speed
Chainring Mount
Direct mount
Intended Use
MTB
Boost Compatible
Yes
Know before you buy
Still have a question?
Ask Metto anything about the Shimano XTR M9125-1 Crankarms before you decide.
