Identical Birel ART / Rotax karts, $595 a round. Mostly NorCal.
Arrive and drive: they supply the kart
What it is
Formula KFX: identical Birel ART chassis with Rotax Junior MAX Evo engines, supplied.
Who
Junior 13–18, Senior 16+ (light/heavy).
Cost
$595 a round plus $100 membership.
Dates
Only Nov 14 Sonoma left in 2026. SoCal-ish rounds have run at Buttonwillow, Santa Maria and Adams.
Where this sits on the Journey
See the map. Every Rotax Racing Club California date is on the SoCal karting calendar.