Hayes Sole Master Cylinder 2mm Push Rod Kit Description: This Hayes Sole Master Cylinder 2mm Push Rod Kit replaces worn, broken, or missing push rods from sole master cylinder assemblies found within select Hayes Brake hydraulic brake levers. Features: Genuine replacement Hayes Brake replacement parts Replacement sole master cylinder push rod for HFX series hydraulic brake levers Includes push rod, barrel, circlip, washer, and lubricant Specifications: Model Compatibility: Hayes Brake HFX-MAG, Hayes Brake HFX-9