RCB S1 HYDRAULIC CLUTCH PUMP 14MM – GOLD

Recommended Additional Upgrades

RCB S1 Hydraulic Clutch Slave Cylinder Pump (14mm) – Race Gold is a heavy-duty drivetrain conversion component engineered to swap out high-friction, high-maintenance mechanical cable clutch lines for a fluid, self-adjusting hydraulic actuation system.

Stepping up to an oversized 14mm bore diameter provides the higher volume fluid displacement required to seamlessly actuate stiff, reinforced aftermarket racing clutch springs. By converting to an inline hydraulic slave cylinder setup, riders experience a significantly reduced lever pull effort, crisp engagement feel, and zero cable stretching over time—making it an essential upgrade for high-performance street sportbikes, modified underbones, and track machines.

Key Features

• Oversized 14mm Performance Bore: Precision-machined with an enlarged 14mm internal piston diameter. This larger surface area accommodates higher volume hydraulic fluid displacement, providing the necessary mechanical force to easily pull heavy, stiff high-RPM racing clutch springs without flexing.

• Fully Forged Aluminum Housing: The core actuator body is forged from high-density aluminum alloy rather than cast metal. This premium structural matrix prevents body expansion and internal fluid bypass under aggressive, heavy racing line pressures.

• Hard-Anodized Race Gold Finish: Coated in a deep, chemically stabilized anodized gold treatment. This protective finish provides premium UV defense against fading, safeguards against corrosive brake fluid contact, and adds a high-end factory racer look to your engine block.

• Constant Self-Adjusting Freeplay: Traditional mechanical cables slacken as your engine’s internal friction plates get hot and expand under load. This hydraulic unit automatically self-compensates for plate friction heat expansion, ensuring your lever’s bite zone remains in the exact same position from start to finish.

• Top-Facing Integrated Bleeder Nipple: Outfitted with a pre-installed, zinc-plated fluid bleeder valve shielded by a rubber dust cap. Its upper vertical position simplifies the bleeding process, allowing trapped micro-air pockets to be quickly purged from the system.

Technical Specifications