SuperNats 29

106DAYS

2027 Winter Series

171DAYS

2027 Pro Tour

255DAYS

SKUSA Mexico

38DAYS

2026 PKC

18DAYS

2026 TSRS

31DAYS

Next ProKart Challenge Event


PRE-ENTRY OPEN NOW
 
PKC Round 4 - SONOMA RACEWAY August 15-16, 2026
Sonoma Raceway Karting Center
29355 Arnold Dr,
Sonoma, CA 95476
sonomaraceway.com
Google Maps
There will be a Sunoco vendor pumping fuel.

California ProKart Challenge
Revised Number Plate Dimensions
Written by John Motley - National Tech Director   
Saturday, 30 December 2017 15:23

Due to the difficulty of using the CIK specification numbers on Cadet bodywork we are modifying the requirement in Rulebook Section 20.2.2.1 to "at least 5" tall with a .750" stroke". The competition number shall be bordered by a yellow background of .375 minimum. No other modifications to the specification is allowed.