The Shimano XTR FC-M9100series crank arms feature an entirely new construction, using direct mount chainrings and a special gear tooth profile for improved chain retention

Details:

• Series: XTR M9100
• Speeds: 12-speed
• Material: Aluminum
• P.C.D: Direct
• Bottom bracket not included
• Chainring not included

XTR FC-M9100 Crank Arms

• Hub Spacing: Non-Boost (135/142mm) & Boost (141/148mm)
• Chainline: 52mm
• Q-factor: 162mm
• Average weight (32t): 531 grams

XTR FC-M9120 Crank Arms

• Hub Spacing:Non-Boost (135/142mm) & Boost (141/148mm)
• Chainline:52mm
• Q-factor: 168mm
• Average weight (32t): 548 grams

XTR FC-M9125 Crank Arms

• Hub Spacing: Boost (148mm)
• Chainline:55mm
• Q-factor: 174mm
• Average weight(32t): 573 grams

XTR FC-M9130 Crank Arms

• Hub Spacing: Superboost (157mm)
• Chainline:56.5mm
• Q-factor: 171mm
• Average weight(32t): 563 grams

Compatibility:

The Shimano XTR Crank Arms are compatible with the following:

• Chain: Shimano HG 12-speed chains
• Chainring: Shimano direct mount chainrings:CRM75,CRM85,CRM95
• Bottom Bracket: Shimano Hollowtech II Bottom Brackets
• Pedal: All 9/16″ pedals