- Internal gear 3-speed hub with coaster brake
- 6061 aluminum hub shell with 13/32" slotted solid axle (175mm overall axle length)
- Gear ratio range of 177% (33% each step)
- Includes 3-spline 18 tooth cog and a shifter. Brake lever sold separately
- Optional: matching front track hub, use UR-5501
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