Same-day shipping cutoff: Noon Pacific Time

It's never too early to start thinking about the next calendar photo contest.  Submit your photos here all year round to be considered in next years calendar and maybe win a prize too! 

Search Products

Category
Model
Year

Big Bore Kit - 300cc, Wiseco

CARB   WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
XT250 '13 - '25

For riders looking for advanced performance. Kit comes with everything you need to turn your XT250 into a rocket.

  • 81mm piston kit
  • 11:1 compression
  • Big bore sleeve
  • Top end gasket kit

  As with any engine or exhaust modification, you will need to re-tune your fuel delivery system for optimum performance.

Ships in 3-5 business days
$399.95