If you want a rubber tire that runs well in all temperatures, get some Yokomo 138Gs with HPI green or red insert. I used to run this before we switch to foams. I also tried the Sorex, and while the were cheaper you had to have different compounds for differetn temps. For Sorexs I used to run the 36s, with the same inserts as above. I tried the 40s, but they took about 2 minutes to heat up, they were too hard. I also tried the 32s, but these were too soft, they would overheat and loose traction.
Anyways, if I had to choose a rubber tire to run nitro now, I would go for the yokomos.
AKA El Pibe RUFAST? HAHA!!!
Ronin Speed Parts