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Shimano Deore XT FC-M8120-1 Crank 1x12-speed - Boost

Shimano Deore XT FC-M8120-1 Crank 1x12-speed - Boost


Shimano Deore XT M8100 - The world is your canvas.

The original MTB group continues its legacy of remaining the standard for mountainbikers everywhere. Nearly three decades in, the Deore XT brand is defined by its trail-tested durability, reliability and performance. As mountainbiking becomes faster and faster and the terrain even more technical, the M8100 series aims to give the rider the necessary feeling of confidence and safety.

Following the principle of passing on the experiences and technologies of the top series, the Deore XT incorporates the innovations of the high-end XTR components. Accordingly the new 12-speed groupset features of course Micro Spline and Hyperglide+.


Shimano Deore XT FC-M8120 crank

To ensure an efficient power transmission, the Shimano Deore XT FC-M8120 1x12-speed crank offers not only a rigid but, thanks to its hollow forged crank arms, also a light design. For a quick and secure chainring installation the crank for aggressive Trail riding features a Direct Mount system.

In connection with the Shimano SM-CRM85 chainrings with Dynamic Chain Engagement+ technology (sold separately), the FC-M8120-1 crankset holds the chain safely even on rough terrain and guarantees at the same time an efficient, smooth and quiet drivetrain.


Technical details of the 1x12-speed Boost crank

  • Material:
    crank arms: aluminium (anodized)
    axle: steel
  • Chainline: 55 mm
  • Q-Factor: 178 mm
  • Recommended rear O.L.D.: 148 mm
  • Weight: approx. 628 grams (175 mm, incl. 32 teeth chainring, manufacturer's specs)

Recommended bottom bracket: BB-MT800 (Thread Type) / BB-MT800-PA (Pressfit)


Content of delivery: crank (without chainring, BB cups and TL-FC41 tool)

Fact Sheet of Shimano Deore XT FC-M8120-1 Crank 1x12-speed - Boost

Product Name: Shimano Deore XT FC-M8120-1 Crank 1x12-speed - Boost
Manufacturer: Shimano Parts
Item Code: SHI508561
activity: Cycling
material: Aluminium
usage bikesport: MTB
crank arm length: 165, 170, 175, 180
shifting system: 12-speed
bottom bracket axle profile: 24mm Hollow Shaft
bottom bracket case width: 68mm, 73mm
direct mount standard: Shimano MTB
chainring mount: 1-speed, Direct Mount
chain line: 55mm
crank special features: Boost (+ 3mm)
Q-factor: 178mm
Model year: 2023
Color: Black
weight: 628g
manufacturer item code: IFCM81201AXXT (165 mm)
IFCM81201CXXT (170 mm)
IFCM81201EXXT (175 mm)
IFCM81201GXXT (180 mm)
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