Rims with a low air content profile provide a more stable setup

Yes, that is correct. Especially in the junior categories, where the engine’s power is much less, I recommend using a set-up which allows the kart more flexibility when exiting a turn, so as to facilitate the smoothness in acceleration. Of course, it is not a permanent system to use all the time, but many times it depends on the chassis model and it can certainly be a good starting point to define a basic set-up.