Feigao Mix Up....I Think?

Originally Posted by BL_RV0

I think it's probably that you don't have enough tire ballooning factoured in. Buggy tires can still balloon .5-1"

I would have to have over 1.5" of ballooning to get to 55mph and I can physically see they aren't ballooning anywhere near that much. That would also almost double the size of the original tire. The calc uses the radius so you have to double that to get overall ballooning. Temps are pretty close to 200F.