Tyre bug at some speed

I do some drag racing stuff in this game and now after testing the Meo´s engine mod i realised that the car gets uncontrollable due to the tyres doing some weird stuff at 330-380kmh

so i tryed many other wheels with tyres and it happens on every Rim that it expands way to much after at some speed.

can anybody check this out and also test that

 

i tried many tyres and its always the same result at that speed, but should drag tyres not hold up to 400kmh?

 

Not unless if it's something like a top fuel dragster or something ludicrous like that, because you aren't going to be doing 400kmh at the end of a quarter mile.

 

but on a full mile

 

What weird stuff exactly? I just tested that 500 CUI in Gladiator. 15x14" (and 15x4 fr) drag tires will hold up to 390 mph (~630 km/h) on grid, and I couldn't burst them on prepped strip surface. Spinning the rears in free hang in that rig explodes the tires from expansion at approx. 200 mph wheel, or what ever speed that is.

 

isnt it that when you get up to those high speed sthe g-load on the tyre causes them to expand a bit but once you exceed 640kph the G-load is so great it causes them to just detonate without warning?