FYI, we ran the same rubber tire last Saturday at CRC on carpet oval. Tires hooked up great and worked awesome. They look awesome on the cars as well, very scale appearing.
Here are a couple pics of my KSG Gen2 w/ the rubber tires mounted. 7mm ride height (rule is 5mm minimum). It is the wrong body, an old C-HD from seasons past but it sure looked like an authentic (old) cup car riding on the CRC rubber tires.