Cylinder Works now has 270cc bolt-in big bore kits in stock for the 2010-12 Honda CRF250R. These kits are great for the vet racer or pro who might be a bit ethically challenged as the kit is complete stealth. The complete kit comes with a new cylinder matched with a Vertex Piston kit and full top end gaskets.
The complete Cylinder-Works Honda CRF250R big bore kit is only $599.95
Cylinder Works Complete Big Bore kit for the Honda CRF250R 2010-12
Part #11007-K01 $599.95
Cylinder Works www.cylinder-works.com 515-251-4070