Cylinder Works 04-09 Honda CRF 250 R 250cc +3mm Big Bore Cylinder Kit 270cc 13.0:1 Comp. 81mm

This kit from Cylinder Works gives you everything you need to upgrade your Honda CRF 250 R's engine displacement. Inside this all-in-one package, you'll find a hand-matched big bore Vertex piston, a top-end gasket kit, and all the necessary o-rings. This combination is designed to increase your engine's horsepower and overall displacement, giving you more power on the trail or track.

The cylinder itself is constructed from a well-built 2618 aluminum alloy. This material was chosen for its strong properties, offering both durability and reliability for performance-driven applications. By increasing the bore size by 3mm, this kit effectively bumps your engine's capacity from 250cc up to 270cc, with a compression ratio of 13.0:1. This means you're getting a significant boost in power and torque compared to the stock setup.

Purchasing this kit can also offer cost savings, as it bundles essential components that would otherwise need to be bought separately from OEM suppliers. It's a straightforward way to achieve a performance upgrade for your CRF 250 R.