Shimano FC-M4100-2 Deore Double Crankset - 10 Speed a Delivers precise and reliable shifting for 2x10-speed drivetrains a 2-PIECE CRANKSET increases rigidity of crankset with less weight and transmits pedaling force efficiently a Extra wide range with front double 36-26T a Q-factor 178.5mm - Chain Line 48.8mm a Chainring Material: steel a Arm x BCD: 96mm asymmetrical 4-bolt a Compatible Chain: HG-X / 10-speed a Chain Ring Combination: 36-26t a Arm Material: Aluminum a Axle Material: steel a Bottom Bracket sold separately a Color: black