The Shimano FC-M5100 Deore 1x Crankset gives you precise and reliable shifting for 1x10 or 1x11-speed drivetrains. The two-piece crankset gives increases rigidity of crankset with less weight and transmits pedaling force efficiently. Compatible with 135mm, 142mm and 148mm O.L.D. Frames 1x11/10-speed. Works best with the Shimano HG-X or HG-X11 chains. The Q-factor is 178.5mm and the chain line is 52mm. Bottom Bracket sold separately. Available in 30t and 32t.