Product Description
The Rear Major Kit is a professional-grade repair set designed for the rear disc brake master cylinders of Royal Enfield motorcycles. Produced by trusted industry vendors like EAZ, this kit is specifically engineered to replace worn-out internal parts that cause hydraulic pressure loss. It includes a precision-machined piston, heavy-duty return spring, and high-grade nitrile rubber seals that are resistant to DOT 3 and DOT 4 brake fluids.
Key Features:
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Complete Overhaul Solution: Includes the piston assembly, primary and secondary seals, spring, and circlip for a full master cylinder restoration.
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High-Grade Rubber Seals: Features specialized chemical-resistant seals that prevent fluid bypass and maintain consistent hydraulic pressure.
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Hardened Steel Spring: Includes a high-tension return spring that ensures the brake pedal returns to its original position promptly after engagement.
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Vendor Quality (EAZ/KBX Type): Manufactured to meet or exceed OEM specifications, offering a cost-effective alternative to replacing the entire master cylinder assembly.
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Restores Braking Precision: Effectively eliminates “pedal sink” and restores a sharp, immediate response to the rear brake.
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Corrosion-Resistant Piston: The aluminum/alloy piston is treated to prevent pitting and scoring, ensuring a smooth stroke within the cylinder bore.
Vehicle Compatibility:
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Royal Enfield Classic 350 / 500 (Models with Rear Disc Brake)
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Royal Enfield Himalayan 411 (Rear Master Cylinder)
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Royal Enfield Continental GT 535 / 650
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Royal Enfield Thunderbird 350 / 500 (Disc Variants)








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