Shimano XT M8100 12 Speed Crank Arms

52mm chain line works with 142 or 148 O.L.D. Prioritizes narrowest possible Q factor

• Special MTB gear teeth profile improves chain engagement and retention
• Hollow forged crank maximizes power transfer while limiting weight
• Superior chain retention
• Rigid and lightweight design for aggressive trail riding
• Q-factor: 172mm
• Chainline: 52mm chain line works with 142 or 148 O.L.D. (Prioritizes narrowest possible Q factor)
• Compatible Bottom Bracket Type: Outboard
• Compatible Chain: HG 12-speed
• Bolt Circle Diameter: 96mm asymmetrical 4-bolt (direct mount spider)
• Chainring sold separately
• Rear Speeds: 12
• Recommended Bottom Brackets: BB-MT800-PA (Pressfit); BB-MT800 (Threaded)
• Bottom Bracket sold separately
• Threaded BB Shell Width: 68/73mm