Cylinder Works 02-08 Honda CRF 450 R 450cc +4mm Big Bore Cylinder Kit 488cc 12.1:1 Comp. 100mm

If you're looking to get more power out of your 2002-2008 Honda CRF 450 R, a big bore cylinder kit is a solid way to go. This kit from Cylinder Works takes your 450cc engine and bumps it up to 488cc, giving you a significant increase in displacement and horsepower. It's designed to look like the stock cylinder but perform much better, offering a cost-effective way to upgrade your engine's performance without starting from scratch.

Inside this kit, you'll find a Vertex piston that's been carefully matched to the cylinder, along with a complete top-end gasket set that includes all the necessary O-rings. This all-in-one approach saves you the hassle and expense of sourcing these parts individually from the OEM. The cylinder itself is constructed from a well-built 2618 aluminum alloy, chosen for its strength and durability, which is crucial for handling the increased power and heat generated by a larger displacement engine. The 12.1:1 compression ratio is also a notable bump, contributing to that improved power output.

When you're ready to install this kit, make sure you have the proper tools and follow the manufacturer's instructions closely. Because this is a significant engine modification, it's a good idea to have a qualified mechanic perform the work if you're not experienced with internal engine rebuilding. This kit is a great option for riders who want a noticeable performance boost for their CRF 450 R.