- Rear Cartridge Hub
- You choose 28 holes, 32 holes or 36 holes
- Sealed Cartridge Bearing
- Flip-flop hub
- Can be used with a fixed wheel cog or a single speed freewheel
- 120mm spacing (can be spaced to 126mm)
- Includes track axle nuts
- Fits 1.37" x 24 tpi singlespeed Speed Freewheels
- Fits 1.37" x 24 tpi fixed cogs
- Fixed side uses 1.29" x 24 tpi reverse thread lockring