• Model: FC-M5100 • Series: Deore M5100 Series • Chainring: 30T • Compatible Bottom Bracket Type: Outboard • Crank Arm Length: 175mm • Spider/Gear Arms: 4 • Recommended Bottom Bracket Press Fit: BB-MT500-PA • Recommended Bottom Bracket Threaded Normal: SM-BB52 • Threaded Bottom Bracket Shell Width: 73mm • Q-Factor: 178.5mm • Chain Line: 52mm • Compatible Chain: HG-X11 11-Speed, HG-X 10-Speed • PCD: 96 • Rear Speeds: 11/10 • O.L.D QR/Nut: 141mm • O.L.D Thru: 148mm • Colour: Series Colour • Optional Chain Guard_ Without Chain/Bash Guard • Crank Fixing Screw Included