01.1339.A – Pro-X Piston Kit STD for Honda CRF250R & CRF250X 2004-2017. Standard bore of 77.97 mm. Compression ratio actual 13.5:1 CC.
- The smart solution to save money on engine repairs
- Manufactured in Japan and designed to be OE replacements.
- Cast from a high-silicon-content aluminum alloy that meets or exceeds OE specifications, then CNC-machined to extremely close tolerances.
- Pistons supplied in a kit package that includes rings, wrist pins and circle clips.
Fits Honda models:
2004-2017 CRF250X, CRF 250X
2004-2009 CRF250R, CRF 250R








