Honda CRF450RX 2019 - 2024 Big Bore Cylinder Works Kit +3mm 13.5:1 Comp 99mm 478cc

CYLINDER WORKS MOTORCYCLE CYLINDER COMPLETE REBUILD KIT - BIG BORE

Unlock your bike's hidden potential with the power producing and durable Cylinder Works Big Bore Kit.

O.E.M. appearing +1 mm to +4 mm big bore cylinder kit, a hand-matched, forged Vertex big bore piston and top-end gasket kit. These kits offer you an affordable way to increase horsepower and engine displacement without giving your secret away to your competition.

FEATURES:

• Big Bore Cylinder Kit
• OEM in appearance
• Increases horsepower and engine displacement
• Includes a hand matched, forged Vertex big bore piston made from the highest quality 2618 aluminum alloy for superior strength and durability
• Includes top end gasket kit that includes all gaskets and o-rings needed for a top end rebuild

KIT INCLUDES:

• Cylinder - New, not remanufactured, cast aluminum nickel silicon carbide (NSC) electroplated big bore cylinder that appears just like an O.E. cylinder. NSC is a composite of a nickel and silicon carbide, providing an excellent wear resistant surface with oil retention capabilities. Cylinders are then diamond honed to the exact bore dimension and proper surface finish to ensure the proper ring seal and oil retention.
• Vertex Big Bore Piston - To handle the internal pressures of a four-stroke engine, Vertex's big bore four-stroke pistons are forged from the highest quality 2618 aluminum alloy for superior strength and durability. Vertex uses unique piston profiles and compression ratios, offered in A, B, C and D sizes, to maximize power and performance while reducing blow-by and oil consumption. Each Vertex piston is then hand matched to fit each Cylinder Works cylinder perfectly.
• Gasket Kits - These kits contain the necessary gaskets to rebuild your top end. Kits include head, base, exhaust gaskets, and O-rings necessary when removing the cylinder and head during routine maintenance.

PLEASE NOTE: Most kits can be assembled and used with perfectly with standard jetting/fuel injection. To achieve optimum performance, you can re-jet the carburetor or use a fuel-injection fuel management controller(sold separately). Contact our team for enquiries.

Images for illustration only. Correct parts will be supplied.

Fitment Details

• Honda CRF450RX 2019
• Honda CRF450RX 2020
• Honda CRF450RX 2021
• Honda CRF450RX 2022
• Honda CRF450RX 2023
• Honda CRF450RX 2024