Projekt Fixie - Fixed-Gear Crank Single-speed Road Bicycle Forged Crankset 44T, 46T, 48T 170mm 44T CNC Machined Chainring - 110mm BCD Chainring Compatibility: 1/2 x 1/8" inch chains *UPGRADED BLACK CRANK ARM LENGTH: 170MM; All Other Crank Arm Lengths: 165mm, JIS Square Taper Bottom Brackets 68 X 103MM, Projekt Fixie BB Available Crank Bolts and Screws Included