Delivers precise and reliable shifting for 1x10 or 1x11-speed drivetrains Q-factor 178.5mm - Chain Line 52mm 2-PIECE CRANKSET increases rigidity of crankset with less weight and transmits pedaling force efficiently For 10/11-speed For 135mm, 142mm and 148mm O.L.D. Frames 1x11/10-speed Chainring Material: steel Arm x BCD: 96mm asymmetrical 4-bolt Compatible Chain: HG-X11 / 11-speed - HG-X / 10-speed Crank Arm Material: Aluminum Axle Material: steel Bottom bracket sold separately