Same-day shipping cutoff: Noon Pacific Time

We will be leaving the office slightly earlier than usual this Friday 5/24 at 2pm (Pacific Time) and will be back in action on Tuesday 5/28 at 9:30am. We are taking a little break to enjoy some quality time with our families and to celebrate the Memorial Day weekend.

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Big Bore Kit - 240cc, BBR

CARB   WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
CRF230F '03 - '25

CRF230F 240cc Kit:

  • 67mm piston, pin, clips, and rings
  • New (not reground) high-performance camshaft
  • Includes heavy-duty valve springs
  • Includes head and base gaskets
  • Requires boring of your stock cylinder to fit the new piston
Please contact us for availability information
$299.95