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Old 07-22-2023, 11:56 AM   #10 (permalink)
filip00
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Quote:
Originally Posted by Rusty View Post
Ewww wrong. Tires can and do get flat spots after sitting for a period of time. The tires on my Jeep Gladiator flat spot every night. It takes about 10 miles of running above 45 mph to get them heated up and round again. The tires are 37/12.5-17's. Run 30 psi in the front and 25 psi in the rear. The only time I've seen 45 psi in tires are on truck tires. I run 35 psi on my Z. Tire construction plays a lot in if a tire flat spots or not too. I've had other brands of tires flat spot too.
I am really curious as to what is actually causing this, if that is really true. I'll tell you why I'm very suspicious about it.

First off, new cars have a higher tyre pressure and they sit around for quite a while before being delivered, and those tyres don't have flat spots.
Secondly, I cycle a lot. New bicycle tyres often come folded, like, completely folded. You unfold them and mount them to the rim, pump them up and presto - they're completely round and no flat spots, although they were completely folded.
I don't think it's that easy to create a flat spot, let alone if you raise the tyre pressure.
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