Color Legend:

• Red: Canceled part - unavailable for any operations.
• Blue: Part of a kit - cannot be ordered individually.
• Gray (Dimmed): Disabled part - non-interactive for various reasons.
• Part Number : Superseded part - replaced by a newer part.

Description: - Precision stopping starts at your fingertips with the RayZR B2UH Front Master Cylinder assembly. This high-pressure hydraulic system comprises the Master Cylinder Sub Assy, the critical Cylinder Set Mast, and a Diaphragm Reservoir designed to maintain pressure integrity under heat. Every squeeze of the Lever 2 is translated into stopping power through the Hose Brake 1 and the precisely machined Union Bolt. Safety features like the Front Stop Switch and Nut Nyloc are included to ensure your brake light triggers instantly and your hardware stays tight. This kit also features the Reservoir Cap and Bracket Master Cylinder, providing a complete solution for brake system overhauls. Using genuine Yamaha hydraulic components is essential for safety; these parts are tested to resist brake fluid corrosion and maintain constant pressure without leakage. With the addition of the Plate Diaphragm and specialized screws, this assembly provides the technical clarity and purchase confidence needed for emergency braking maneuvers on city streets.