BIG BORE CYLINDER WORKS KIT - PISTON KIT, GASKET KIT & CYLINDER Unlock your bike's hidden potential with the powerful and durable Cylinder Works Big Bore Kit. This kit provides an affordable way to increase horsepower and engine displacement without revealing your secret to the competition. Features: Cylinder: Brand new, not remanufactured Cast aluminum nickel silicon carbide (NSC) electroplated for excellent wear resistance and oil retention Diamond honed to the exact bore dimension and proper surface finish for optimal ring seal and oil retention Vertex Big Bore Piston: Forged from high-quality 2618 aluminum alloy for superior strength and durability Unique piston profiles and compression ratios to maximize power and performance Hand matched to fit each Cylinder Works cylinder perfectly Gasket Kits: Includes head, base, exhaust gaskets, and O-rings necessary for top-end rebuilds Kit Includes: Big bore cylinder Vertex piston Piston rings Piston pin Circlips Gasket kit Note: Most kits can be used with standard jetting/fuel injection. For optimum performance, re-jet the carburetor (sold separately) or use a fuel-injection fuel management controller (sold separately). Picture for illustration purposes only. Actual kit may vary to suit the model listed. Upgrade your ride and hit the trails with enhanced power and performance with the Cylinder Works Big Bore Kit!