SuperNats XXIV

339DAYS

2020 Winter Series

26DAYS

2020 Pro Tour

89DAYS

PKC California

76DAYS

PKC Texas

2020 TBA

Great Lakes PKC

2020 TBA

Next ProKart Challenge Event


PRE-REG WILL OPEN LATE JAN

Round 1 - Buttonwillow Feb 29 - Mar 1, 2020
Buttonwillow Raceway Park
24551 Lerdo Highway
Buttonwillow, CA 93206
(661) 764-5333
buttonwillowraceway.com
Google Maps
  • Pit Passes
  • Pit Spot Reservations
  • Event Schedule
  • Track Map // Pit-Map
  • Info Sheet // Tech Sheet

California ProKart Challenge

TaG: Motori Weight Increase
Tuesday, 30 January 2007 16:00
For 2007, TaG USA changed the rules for Motori to allow a smaller combustion chamber volume (CCV). This is a performance enhancing modification and thus, the TaG USA weights for Motori were increased by 10lbs. ProKart Challenge is adopting the same Motori weight increase beginning with the February 3rd event and will continue to monitor the Motoris, as well as other brands, to determine if additional adjustments are necessary to maintain parity.
  • Class 'A' Engines (Senior 390lbs, Master 430lbs)
    • Comer
    • Sonic VX125
    • Sonic TX125
    • Biland
    • Italsiste
  • Class 'B' Engines (Senior 360lbs, Master 400lbs)
    • PRD Fireball
    • Rotax
    • BM Jaguar
    • Leopard
    • EasyKart
    • Vortex ROK
    • Motori 7 (Senior 370lbs, Master 410lbs)