Internally fitting service parts for Hayes hydraulic disc brake master cylinders.
- All HFX-MAG compatible master cylinder internals are designed for the current aluminum piston/2mm push-rod platform (2003 and newer).
Use to create your desired chain length in single-speed applications. Only one half link is needed.
- Width: 9.4 mm
- Drivetrain Speeds: 1
- Color: Black
- Chain Compatibility: Shimano , SRAM , Campagnolo , Connex , KMC