Many "cut" or "treated" tires reduce the tire temps. For example hot lap ii claims it reduces tire temps by 18 to 20 degrees. Do you adjust air pressures higher so the tire does not come in too early?
Correct your not locking any kart tire down based on only air pressure !!Thats crazy, Ive never seen tire temps on kart tires over 150 degrees. If you have the correct tire on then heat will not lock it down. You can lock a kart tire down with too soft of tire, too much rubber, wrong prep but I wouldnt consider that heat related. Tires should be able to operate at over 200 degrees, way more than you would see in a kart tire.
MG is a synthetic tire used on pavement.According to MG 176 degrees is optimum?
View attachment 13127