Description
The Cylinder Works Standard Bore Cylinder Kit is a high-quality OE replacement for your 2005-2021 Yamaha YZ125. This kit includes a new cylinder, Vertex piston kit, and all necessary gaskets, making it a complete top-end rebuild solution. The cylinder is nickel silicon carbide plated for durability and performance and is designed to match stock appearance and specifications. Engineered for closed course competition use only, this kit ensures longevity and reduced engine noise.
Features:
- Includes cylinder, piston kit, and gaskets
- Matched with Vertex pistons for optimal performance
- Nickel silicon carbide plated cylinder for extended life
- OEM look and fit
- Replacement piston, gaskets, and ring sets available
- For closed course competition use only













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