The FREELINE BRAKE CUP (dimensions 25 x 30 x 2 mm) is a high precision replacement hydraulic component of origin manufacturer (Original Freeline / Birel Art). It is designed to ensure absolute internal sealing and pressurizing the circuit at the cylinder master piston on the group's competition chassis Birel Art.
This cup (or specific lip seal) displays an inside diameter of 25 mman outside diameter of 30 mm and a thickness / height of 2 mm. Its technical profile is specially molded to evade under the pressure of the brake fluid, ensuring that no internal leakage occurs when the driver crushes the pedal. Made in a high-end elastomer resistant to chemical aggressions of competitive fluids, it maintains a reactivity of instantaneous and constant pedal, handle after handle.