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Shimano XT FC-M8120-1 Crank Arm Set
Sale price
$69.99
Regular price
$153.99
Prices subject to change. How pricing works →
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In Stock Ships in 1-2 weeks based on its location
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SKU: IFCM81201AXXT Option: Black / 165mm
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Stock Availability by Location
RA Cycles Brooklyn In stockLow stock (1 left)Low stock (2 left)— Out of stock— Not immediately available
105 5th Ave, Brooklyn, NY 11217718-636-5242
* Available for in-store pickup in 2-4 hours
* Available for in-store pickup in 2-4 hours
* Available for in-store pickup in 2-4 hours
RA Cycles Walnut Creek In stockLow stock (1 left)Low stock (2 left)— Out of stock— Not immediately available
2099 Mt Diablo Blvd, Walnut Creek, CA 94596925-433-7099
* Available for in-store pickup in 2-4 hours
* Available for in-store pickup in 2-4 hours
* Available for in-store pickup in 2-4 hours
Distribution Center - East In stockLow stock (1 left)Low stock (2 left)— Out of stock— Not immediately available
Distribution Center - Central In stockLow stock (1 left)Low stock (2 left)— Out of stock— Not immediately available
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Shimano XT FC-M8120-1 Crank Arm Set
$69.99
Shimano XT FC-M8120-1 Crank Arm Set Info
The Shimano XT FC-M8120-1 Crank Arm Set sits in the XT lineup where serious trail performance meets everyday rideability — cold-forged aluminum arms built around Hollowtech II construction for a stiffness-to-weight ratio that holds up under hard efforts on technical terrain. The narrow 178mm Q-factor keeps your pedaling stance compact, which translates directly into cleaner power transfer and less fatigue on longer rides.
Chainrings are sold separately, and the direct mount interface gives you the flexibility to run either a 1x or 2x setup without changing the crank. These arms are built for Boost spacing, which positions the chainline correctly for modern 148mm rear hubs — a detail that matters if you're running or upgrading to a Boost-spaced drivetrain. Three arm lengths are available — 165mm, 170mm, and 175mm — to match your fit requirements.
Shimano XT FC-M8120-1 Crank Arm Set Specs at a Glance
- Material: Cold-forged aluminum
- Arm Lengths: 165mm, 170mm, 175mm
- Q-Factor: 178mm
- Chainring Interface: Direct mount (chainrings not included)
- Hub Spacing Compatibility: Boost (148mm)
Shimano XT FC-M8120-1 Crank Arm Set Video
PRICE MATCH GUARANTEE
We will price match against advertised or quoted prices from other authorized dealers of the product!