Engineered for peak enduro performance, the Shimano XTR FC-M9220 crank arms deliver unmatched strength, stiffness, and precision. Utilizing Shimano’s advanced HOLLOWTECH II forging and a burly enduro-specific spindle, these crank arms are ready to handle the harshest trails and biggest hits without compromising pedaling efficiency. Available in 160–175mm lengths and compatible with SM-CR96 direct-mount chainrings, they offer custom fit and drivetrain tuning for any rider. Features: HOLLOWTECH II Construction: Cold-forged for the perfect balance of weight savings, stiffness, and power transfer on aggressive terrain. Fit & Compatibility: 24mm spindle fits both Shimano threaded and Press Fit bottom brackets, while a 55mm chain line ensures wide frame clearance. Q-Factor: Tuned for enduro racing or XC, the optimized Q-factor maintains familiar pedaling ergonomics and efficient power delivery. XTR M9200 Crank Arm Specs: M9200 XC M9220 Enduro Works With M9200 XC Model: XTR M9200 Model ID: FC-M9200 Crank Arm Length: 165mm, 170mm, 175mm Chainline: 55mm Q-Factor: 168mm Spindle: 24mm Crank Arm Material: Aluminum Chainring: Not Included Drive Config: 1x Weight: 504g (165mm), 514g (170mm), 524 grams (175mm) M9220 Enduro Model: XTR M9220 Model ID: FC-M9220 Crank Arm Length: 160mm, 165mm, 170mm, 175mm Chainline: 55mm Q-Factor: 176mm Spindle: 24mm Crank Arm Material: Aluminum Chainring: Not Included Drive Config: 1x Weight: 502g (160mm), 516g (165mm), 526g (170mm), 522 grams (175mm) Works With The Shimano XTR M9200 Crank Arms are 100% backward compatible with previous generation Shimano 12-speed chainrings and drivetrains. Compatible models include: XTR M9100, Deore XT M8100, SLX M7100, and Deore M6100. XTR Crank Arms are compatible with the following: Chainring: Shimano direct mount chainrings: CRM75 , CRM85 , CRM95, CRM96 Bottom Bracket: Shimano Hollowtech II Bottom Brackets: XTR, Deore XT Pedal: All 9/16" pedals