SHIMANO - Rear FREEHUB - 6-Bolt Disc Brake - Quick Release - 11-speed
For use with 6-bolt disc brake rotors and quick release dropouts, the SHIMANO FH-M525A rear hub is available in silver and black and compatible with 11-speed cassettes.
6-bolt disc rotor mount
Double contact sealing
Super polished bearing races
Ultra-smooth bearing race surfaces provide a precision low-friction rolling action
Light alloy quick release
Quick release lever and adjusting nut are made from light alloy