The Shimano Deore XT FC-M8100 crankset is the 1x12-speed foundation for trail and enduro riders who demand uncompromised power transfer.
Paragraph 1 – Key Benefit + Target Audience:
Trail and All-Mountain riders get a crank system with the M8100 that delivers maximum stiffness with low weight thanks to Shimano's proven Hollowtech II technology. The hollow, forged aluminum arms transmit every pedal stroke without loss – even on technical terrain.

The Direct Mount system allows for quick chainring changes (28T–36T, sold separately) without tools. The FC-M8100 is compatible with 142mm and 148mm Boost hubs as well as BSA 68/73mm, BB30, and Pressfit bottom bracket standards – bottom bracket sold separately.
Feature Bullets:
• Hollowtech II – forged aluminum, maximum stiffness, minimal weight
• 1x12-Speed – optimized for modern MTB drivetrains with wide cassette
• Shimano Direct Mount – chainring changes in minutes, 28T–36T compatible
• 4 Crank Arm Lengths – 165 / 170 / 175 / 180mm for every rider type
• Boost & Standard – compatible with 142mm and 148mm O.L.D.
• Wide BB Compatibility – BSA 68/73mm, BB30, Pressfit30, BB92
• Q-Factor 172mm / Chainline 52mm – optimal geometry for 1x systems
• Chainring & Bottom Bracket NOT included – individual configuration possible