I realize that the numbers are outright insane. But even if you drop the voltage down to 3.7 under load and .5 radius for ballooniing. You still get 115mph. I'm sure the tires would probably gain 1" in radius at those kind of speeds, assuming you could find some sort of way to keep them on the rims. They'd probably shred or fly apart. I in no way expect a revo to achieve that kind of speed. I just was tinkering around and came across that speed number and thought I'd share. Granted if you ran a high MAH pack say a 10k the batteries would probably be able to keep 4.0v underload.