Cylinder Works Big Bore Cylinder and Gasket Kit for Yamaha (21010-G01)

Upgrade your Yamaha engine with the Cylinder Works 21010-G01 Big Bore Cylinder and Gasket Kit, designed as a ready-to-install replacement for riders seeking dependable performance and simplified installation. This direct bolt-on kit requires no re-plating or additional machine work, helping you complete the installation with standard tools and compatible components. The cylinder is designed to look virtually identical to the original equipment cylinder while providing the benefits of a big bore configuration.
The Cylinder Works 21010-G01 kit includes a matched Vertex piston engineered to support long service life, consistent performance, and reduced engine noise. The cylinder features a durable Nickel Silicon Carbide plating that helps resist wear and supports reliable operation under demanding riding conditions. Matching the piston and cylinder components helps promote proper fitment and dependable engine performance.
This complete kit includes the cylinder, Vertex piston, piston rings, piston pin, retaining clips, and required gaskets for a convenient installation. As a direct bolt-on solution, the big bore cylinder does not require machining, making it a practical choice for engine rebuilding or performance upgrades. Manufactured in the USA, the Cylinder Works 21010-G01 kit combines application-focused design with quality components for Yamaha engine service and performance needs.

Features:

• Ready-to-install direct bolt-on cylinder kit requires no re-plating

• Designed to look virtually identical to the original equipment cylinder

• Includes a matched Vertex piston for longevity, performance, and reduced engine noise

• Nickel Silicon Carbide-plated cylinder supports long service life and wear resistance

• Complete kit includes gaskets, cylinder, piston, rings, piston pin, and retaining clips

• Big bore cylinder requires no machining or additional machine work

• Manufactured in the USA

Ships from Parts Unlimited.