Version 24.0 Rules Are Now Available... FOR FREE!  

We truly believe we have the best rule book available for four-cycle sprint racing. Our rule book allows for most racers to race with their existing equipment with the lowest amount of changes required to be compliant with the rules.

You will find this to be a very comprehensive set of rules that accounts for more chassis/bodywork/seat combinations than any others out there. We feel that these rules will not only open our series to even more racers, but will also provide the best level of competition possible.

Best of all, the rules are FREE!
Download Them Right Here!

In a nutshell, here are the general rules:

Engine Rules – Most Current Briggs and Stratton© Engine Rules, Spec. Fuel

Bodywork – We’re all CIK since 2021

Dry Tires – All classes will use Vega VAH compound Tires.
Kid Kart / Cadet/ Sportsman: 4.60 Front, 4.60 Rear
Junior / Senior Classes: 4.60 Front, 6.00 Rear
NO TIRE PREP ALLOWED

Wet Tires – All classes will use Vega w6 compound Tires.
Kid Kart / Cadet / Sportsman Classes: 4.20 Front, 4.20 Rear
Junior / Senior Classes: 4.20 Front, 6.00 Rear
NO TIRE PREP ALLOWED

Most current revision is rev 24.0 published Dec 27th, 2023

Drivers (or their legal guardians) may request permission of series officials prior to any event for a one-year (365 day) age waiver to allow the driver to stay in a class for an extra year, or to move up early. This waiver is not available to a competitor attempting to reach the minimum competition age for Kid Karts. 

CKNA will grant any club or series permission to use our rules so long as a few simple guidelines are met. If you are an event organizer wishing to use these rules, please contact contact us via email and let us know. Our goal is to get as many groups on the same set of rules as possible throughout the country. By doing this, we hope to make four cycle classes that racers can go anywhere in the country with no confusion or added costs.