Rigid enough for optimal power transfer, available in 160-175mm lengths and compatible with SM-CR96 chainrings in all sizes, the FC-M9200 checks every box for a lightweight, reliable cross-country crankset. Shimano XTR M9200 Groupset ReviewKey Features:Lightweight: The crankarm and steel axle strike a balance between reliable power transfer and light weight for top-level XC performance.Machined Chainring: The SM-CRM96 is Shimanos lightest ever machined chainringHOLLOWTECH II: Shimanos forging provides optimal weight, stiffness and rigidity for XC riding and racing.Q Factor/Chainline: An XC-optimized Q Factor brings race-feel familiarity, while the 55mm chain line offers maximum frame compatibility.Compatibility: M9200 cranks come standard with a 24mm spindle and are compatible with Shimanos threaded and Press Fit bottom brackets.