Cylinder Works 05-17 Honda CRF 450 X 450cc +3mm Big Bore Cylinder Kit 478cc 12.1:1 Comp. 99mm

Cylinder Works is known for making engine components that look like stock but perform much better. This Big Bore Cylinder Kit is a prime example, designed to give your 2005-2017 Honda CRF 450 X a significant power boost. It effectively increases your engine's displacement to 478cc, giving you more horsepower and a more responsive ride.

This kit comes with a hand-matched Vertex piston and a complete top-end gasket kit, including O-rings. This all-in-one package offers a cost saving compared to buying each piece separately from the OEM. The cylinder itself is constructed from a well-built 2618 aluminum alloy, chosen for its strong and durable properties, ensuring it can handle the increased demands of a bigger bore engine. The kit is designed for a 12.1:1 compression ratio with a 99mm bore, which is a +3mm increase over stock, contributing to the improved performance.

When you're looking to get more out of your CRF 450 X, this kit is a solid option. It's a way to get a noticeable increase in power and engine size without drastically changing the appearance of your engine. Just remember to consult the manufacturer's installation instructions for the best results.