Upgrade your Yamaha with our high-performance Big Bore Cylinder Kit, designed for effortless installation and superior durability. This ready-to-install kit features OEM-like aesthetics and is engineered to enhance your engine’s efficiency and performance without the need for re-plating or machine work.

• Direct bolt-on design for easy installation without modifications.
• Includes matched Vertex pistons for enhanced longevity and reduced noise.
• Nickel Silicon Carbide plating ensures exceptional wear resistance.
• Complete kit includes gaskets, cylinder, piston, rings, pin, and clips.
• Big bore cylinders deliver increased power while maintaining reliability.
• Manufactured in the USA with high-quality materials for optimal performance.