They look small since they're next to big planes, but plane tires are actually quite big, so I'm not surprised they wouldn't have any trouble w/ the tracks.
I was more thinking about smaller GA planes, but it’s probably a similar situation. They’re designed to slam into the ground with a plane on top of them over and over again, so they’re probably more than strong enough.
There’s a significant difference in the amount of force on a car tire vs the amount of force on a plane tire while it’s landing. But it’s undoubtedly designed for.