These are the rules on Outlaw Karting of America.
OPEN OUTLAW CLASS
1. Age Limit: Open – Minimum age 15
2. All exceptions must be approved by Promoter.
3. Motor: Any cc – No big street type motors, i.e., 650, 750, 1100, etc. If in doubt, ask.
4. Minimum weight kart and driver ( Adjustment for average kart weight may occur ) 450 lbs
5. All racers must run a spaced right rear tire. Racers have the option of running 50 or 55 right rear tires. Right rear tires must punch 50 or above on a durometer.
6. Stock OEM manual disk type clutch only, must be able to push start.
A couple of problems that I see are #1 is no cc limits or cylinder limits, just say no street bike engines. #2 it say you have to run a D50 or 55 tire but then says it only needs to punch a 50 on the durometer. What is the point of having a tire rule if you are going to allow the chemicals to soften them down to a 50.jmo