[PeteB570]

Not bad, good image.

I think on most buses, of the two rear wheels, the front is a single while the back one is dual.

[SpottedBeaver]

Yes, the rear wheels would be dual and the front ones would be single.

It was reported that they were able to make it a short distance to a shop to get a new tire. I'm guessing that it was a rear tire base on that information.

[dread78645]

I think on most buses, of the two rear wheels, the front is a single while the back one is dual.

Yep. The Greyhound "scenicruiser" style buss hss dualies on the rearmost axle. The mid-axle has single wheels and can be raised off the road surface for less than full loads -- bus will bounce and sway due to over-suspension.