336-694-3059

Please call to order 608-842-0680

$1,995

Fits 2010-2017 CRF250R

Bore: 80   Stroke:  58.9  Actual Displacement:  296.06 cc

Includes:

Your OEM cylinder modified with an “Ice Cube” style forged aluminum liner and plated with ceramic bore coating.

Your OEM crankshaft stroked and balanced with a custom Carrillo rod.

Long rod kit.

CP piston kit 13.4:1 (100 octane)

Necessary gaskets

NOTES:  This kit is a modified version of our CRF304 that uses a smaller piston and is legal for the ATVA National Schoolboy 2 open class.  It has been upgraded to use a custom Carrillo rod with a larger pin and bearing that holds up to the additional stress of an ATV chassis.  We have since revised this kit to use an even longer rod that maintains the OEM engine geometry.  Check out the CRF300R kit.  This one has a punchy power delivery and winds up faster due to the longer stroke and shorter rod.

Notes: Requires fuel management.  Case mods required to clear stroker crankshaft. We will mod your bare and clean cases for $150.