Big bore cylinder kit designed for KTM 250 and Husaberg FE 250 models. This +3mm kit increases displacement to 270cc with a 13.9:1 compression ratio. It includes a matched Vertex piston for improved longevity, performance, and reduced engine noise. Nickel Silicon Carbide plating ensures durability, and the kit is a direct bolt-on replacement requiring no replating or additional machining.

Features

• Direct bolt-on installation with no replating required


• Increases displacement to 270cc with a 13.9:1 compression ratio


• Nickel Silicon Carbide plated for extended durability


• Includes matched Vertex piston for optimized performance


• Comes complete with all necessary components for installation


• Replacement Vertex piston, rings, clips, and pins available separately


• Manufactured in the U.S.A.

Specifications

• Part Number: 51004-K01


• +3mm Big Bore Cylinder Kit


• Displacement: 270cc


• Compression Ratio: 13.9:1


• Uses Vertex Piston #23867

Included Items

• (1) Cylinder


• (1) Piston kit


• (1) Top-end gasket kit


• (1) Piston pin


• (2) Circlips


• (1) Ring set

Vehicle Fitments

• 2014 KTM 250 EXC-F (Euro)


• 2014 KTM 250 EXC-F


• 2013-2015 KTM 250 SX-F


• 2013-2015 KTM 250 XC-F


• 2014 KTM 250 XCF-W


• 2014-2015 Husaberg FE 250