Cylinder Works Standard Bore Cylinder Kit for Yamaha 77.00 mm (20010-K02)

Restore reliable engine performance with the Cylinder Works 20010-K02 Standard Bore Cylinder Kit for Yamaha applications. This ready-to-install, direct bolt-on kit is designed to provide a straightforward replacement for the original cylinder without requiring re-plating. Its OEM-style appearance integrates cleanly with the engine while supporting dependable fitment and function.
The kit includes a matched Vertex piston engineered to work with the Cylinder Works cylinder for consistent performance, long service life, and reduced engine noise. The standard-bore configuration maintains the original bore specification, making it a practical choice for replacing a worn or damaged cylinder while preserving the intended engine characteristics.
A nickel silicon carbide-plated cylinder surface provides excellent durability and wear resistance for demanding riding conditions. Each Cylinder Works 20010-K02 kit is made in the USA and built to meet the needs of riders and technicians seeking a dependable, direct replacement solution. Verify application and engine compatibility before installation.

Features:

• Direct bolt-on replacement requires no cylinder re-plating

• OEM-style appearance for an integrated factory look

• Matched Vertex piston supports longevity, performance, and reduced engine noise

• Nickel silicon carbide-plated cylinder provides long-lasting wear resistance

• Standard bore design maintains the original engine bore specification

• Made in the USA

Ships from Parts Unlimited.