Tyre pressure?

Submitted: Friday, Jan 20, 2006 at 09:21
ThreadID: 29906 Views:12319 Replies:13 FollowUps:9
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Why do people run such high pressures in their tyres? We read of people here who run over 40 psi, even 50 in radial construction tubeless tyres. Why?
I can understand in bias mult iply construction to keep the flexing down and hence the friction amongst the plies creating excessive heat, but why in radials?
Have never run a radial of any sort over 35 psi and never a problem. The Bridgestone Duellers on the Patrol wore out at 90 000 k running at 29 - 28 in all road conditions and no repairs.
I might add that we live in the 'bush' and drive on dirt and gravel roads a lot.
but, I seem to be missing something here, so just thought I would ask.
Might be a silly question, and I am sure you will know far more than me.

Mike
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