- Aluminum hub shell with cartridge bearings
- Rear models use a steel freehub body
- **SHIMANO HUBS ONLY AVAILABLE FOR WHEEL BUILDS**
- HUB RR SHI FH-QB400 36x135 QR 6B 8-10sCAS BK BULK
Gears: 8-10s Cass
Spoke Count: 36H
Spacing/Axle: QR
Material: Aly
Color: Black
Brake Type: 6B