Cylinder Works 01-13 Yamaha WR 250 F 250cc +3mm Big Bore Cylinder Kit 270cc 12.5:1 Comp. 80mm

Cylinder Works is known for making well-built engine components that perform. This big bore cylinder kit is designed to give your 2001-2013 Yamaha WR 250 F a significant boost in power and displacement. It takes your stock 250cc engine and increases it to 270cc, giving you more grunt for the trail or track.

This kit comes with a Vertex piston that's hand-matched to the cylinder, ensuring a solid fit and reliable operation. The cylinder itself is made from a high-quality 2618 aluminum alloy, which is strong and durable. You'll see improved horsepower and a noticeable increase in overall engine displacement. Plus, it includes a top-end gasket kit with O-rings, so you have most of what you need to get the job done. Buying it as a kit can save you money compared to sourcing all the OEM parts separately.

When you're rebuilding the top end of your WR 250 F, this kit offers a straightforward way to get more performance out of your machine. The cylinder's appearance is similar to stock, but the internal design is all about performance. Make sure to check the manufacturer's installation instructions for any specific details regarding assembly and break-in procedures.