Cylinder Works +3mm Big Bore Complete Cylinder Kit (31004-K01) for Kawasaki KX250F (2009) and Kawasaki KX250F Monster Energy (2009) increases displacement to 269cc with an 80mm bore and standard compression. This direct bolt-on kit is ready to install, requiring no replating or additional machining. Designed to deliver enhanced performance while maintaining OEM reliability.

Features:

• Big bore cylinder increases displacement to 269cc (+3mm).


• Bore size: 80mm with standard compression.


• Nickel Silicon Carbide plating for superior durability and long life.


• Honed to precise specifications for seamless piston installation.


• Direct bolt-on design requires no additional machining or replating.


• Complete kit includes all necessary components for installation.

Specifications:

• Displacement: 269cc


• Bore size: 80mm


• Piston assembly: Vertex #23405

Included Items:

• Cylinder


• Piston


• Rings


• Pin and clips


• Gaskets

Cross-Reference OEM Part Numbers:

• Kawasaki: 11005-0110

Vehicle Fitment:

• Kawasaki KX250F (2009)


• Kawasaki KX250F Monster Energy (2009)