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2010 CRF250R big bore into 264cc

Posted by Jay on January 15th, 2010

Stock is 76.8mm and big bore is out to 79mm making it 264cc and the results are great! Big power gains for low cost in the new CRF250R with no fuel mapping changes.
2010-crf250r-mod-264cc

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This entry was posted on Friday, January 15th, 2010 at 6:49 pm and is filed under Project Bikes. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

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« Dirt Wheels 400 EX into 417cc bolt on mods
Thumper Racing knows BIG with the KTM 600 »