bout 50% of the bikes on the roads and most all ATV's/dirtbikes are CV.

They are great carbs. Since the intake runners are so short and the carbs are so quick acting, NO accelerator pump on the carb! The work on venturi vacume lifting a rubber diaphram, makes it so they run on the money everytime, no tuning. If car's had CV cars, EFI would almost not be worth the price difference.