Shimano XT FC-M8100-2 Boost Crankset

$280⁰⁰

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Chainring Size

36x26

Color

Black

Crank Length

165mm 170mm 175mm

Typically ships within 5-8 business days.

Shimano | SKU: IFCM81202BAX66 | Option: 36x26, Black, 165mm

This product is HSA / FSA eligible

Pickup available at RA Cycles - Brooklyn

Usually ready in 24 hours

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Shimano XT FC-M8100-2 Boost Crankset Info

The Shimano XT FC-M8100-2 Boost Crankset sits a step below XTR in Shimano's mountain bike hierarchy, but it doesn't leave much on the table. Cold-forged aluminum arms built with Hollowtech II construction keep weight down while delivering the kind of bottom-bracket stiffness that translates directly into power on climbs and technical terrain.

This is the 2x12-speed version, designed around a 52mm chainline and Boost spacing — the wider hub standard that stiffens the wheel build and sharpens the overall drivetrain geometry. A 172mm Q-Factor keeps your feet in a narrow, efficient stance throughout the pedal stroke, and the direct-mount chainring interface means the 36x26 ring combination seats securely with minimal flex under load. Three crank arm lengths — 165, 170, and 175mm — let you dial in fit based on your riding style and anatomy.