Thats a +4mm BigBore Kit and will turn your bike or ATV into 434cc !
Complete kit with gaskets, cylinder, piston, rings, pin and clips
Compression ratio: 11.3:1
-Ready-to-install, direct bolt-on cylinders require no re-plating and look virtually identical to the OEM cylinders
-Cylinder kits include matched Vertex pistons to ensure longevity, performance and reduced engine noise
-Nickel Silicon Carbide (Nikasil) plated for long life
-Honed to exact size for easy piston installation
-Big bore cylinders do not require machine work (unless noted)
-Made in the U.S.A.
-Replaces Kawasaki OEM cylinder 11005-S007, Suzuki 11210-29F11-0F0, 11210-29F20-0F0, Arctic Cat 3402-844