How am I not dead?

[erasedhammer]

So I took a trip in my humvee over a mountain pass to a town about 80 miles away (chuggin along at 50). Before I left I checked the tire pressures and they all were inflated correctly, taking note that the two rear tires were a little low. I get their, I do what I need to, then I come back home and check the air pressure of the tires as usual.
Now I have runflats in the two rear tires of my humvee, and I went to check the pressure of the rear two tires, and it was ZERO!

I had driven a total of 160 miles at 45-55 mph with two flat rear tires. I heard that you are not supposed to drive above 30 mph with flat tires and the runflats, so my question is, how did I not completely destroy the tires? or had an accident?

Also, is there any way to find out what type of runflats were installed? The rear tires are goodyear wrangler mt/r that were in bad condition when I bought the vehicle.

 

[Mike82ndABN]

I would be careful airing them up again. If they have internal sidewall damage from the heat, they could literally blow up in your face.

To be honest if you put them through 160 miles of driving like that, i would strongly suggest replacing them. At the very least I would be splitting the rims and inspecting the inside.

 

[Scrounger]

I would break those tires down and inspect the insides before I would even think of airing them up. As Mike82ndABN has posted there is probably sidewall damage. If there is, the sidewall could fail or at least you will have a zipper tear in the future. Tires are cheap lives aren’t.

 

[dilvoy]

There is run flat grease inside of the tire so there is not too much friction between the inside of the tires and the rubber runflat/beadlock.

 

[cpf240]

...The rear tires are goodyear wrangler mt/r that were in bad condition when I bought the vehicle.

Why even make such a trip with tires known to be 'in bad condition'?

 

[86humv]

If they had no air....they would look half flat.
That would be very noticeable , so maybe they were good most of the trip.

 

[gringeltaube]

The outer diameter of the run-flat insert is 23" and the inner tire diameter, about 33". With no air at all that tire would sit at least four inches lower than normal.
That is much more than "a little low"...


G.

 

[Tracer]

Why even make such a trip with tires known to be 'in bad condition'?

Agreed!!!

 

[eaw46]

Running that long and fast on flats would start a fire I am sure.