Powerking Towmax ST235/80R16 Tire Failure

gkchevy wrote:
Also very true ... But on this given occurrence I traveled approx 500 feet. so heat build up would be minimal

also given an approximate Loaded trailer weight of 10,500 lbs (9210lbs curb weight)... and a tongue wight of ~1520 lbs that leaves an approximate axle load of 9000 lbs / 4 tires is roughly 2250 per tire ... which leaves about a 1200 lbs of tolerance, so taking on the extra weight from a flat tire for ~500 feet shouldn't be an issue.

I talked with a Tire expert/engineer. and he tells me that the unflat tire is in fact taking a majority of the weight given the close proximity of the two tires ... vs. a car with a flat tire whos tires are spread out ... the opposite tire will become unloaded.

Also it could be that your tonge weight is 1000 lbs so the four tires bare 9500lbs and the loads are unequally devided.
In another topic one has weighed and it apeared to be 2800 heviëst and 1900 on the lightest tire. the weightdifferences where crossed on front and rear axle.So the 2 blewing tires can also be left front and right rear.
Then the 3500lbs of your tires then 9500 lbs devided by 4 gives 2375 average , say 2 tires 2600lbs and the other 2 2150 lbs.
Then the reduction of 20% of 3500 brings maximum load at wich a deflection that is absolutely save for the tire is 2800.
Then I even calculate with a reserve to that of 10% so 2600 becomes 2860. so a pressue of 80 psi is yust enaugh, if you want the tires to last longer then 5 years.

So if you ever do a 4 or 5 point weighing ( so also tonge-weight, you could be surprised of the load-division, and the higher weight then you estimate.

Then if the most loaded tire blows and the weighs are crossed, the other tire on that side gies from 2150 to 4950 lbs wich it can probably yust stand for the short distance at the verry low speed.