Sturmey Archer SX-RK3 3sp 170mm Disc Rear Hub HKS3K.PSSS.S00.BX

- FatBike compatible, internal gear 3-speed freewheel hub for use with any IS 6-bolt disc brake \n- 6061 aluminum hub shell with 13/32" slotted solid axle (215mm overall axle length) \n- Gear ratio range of 177% (33% each step) \n- Includes 3-spline 18 tooth cog and a TSS33 twist shifter