According to this NASA article the tires are inflated to 340 psi (main gear) and 300 psi (nose gear). At landing, there is significant strain, but what about in space? Are the tires exposed to vacuum or are they in a pressurized compartment?
It seems like the stress of being in a very cold and non-pressurized environment would be huge, and completely different from the strain they are under when landing. Why don't the Space Shuttle Orbiter's tires explode in the vacuum of space?