Dynojet Jet Kit
CRF 250X 2005-2006 Stage 1

Dynatek
Dyna FS Offroad Ignition - CRF 250R 2007

JE Piston Kits
CRF 250 R/X 2004-2006/78mm/13.5:1/249cc
CRF 250 R/X 2004-2007/80mm/13:1/262cc

Wiseco Piston Kits
CRF 250R 2004-2007/CRF 250X 2004-2007/78mm/13.5:1/249cc

Orient Express
CRF 250R 2004-2005/CRF 250 X 2004-2007/.318" @ 244 Int/.318" @ 250 Exh/1mm-.040"
CRF 250R 2004-2007/CRF 250 X 2004-2007/.330" @ 252 Int/.328" @ 267 Exh/1mm-.040"

Cometic Gaskets
Top End Kit - CRF 250R 2004-2007/79mm Bore
Top End Kit - CRF 250R 2004-2007/81mm Bore