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Hysteresis Posted by CrNiFe [Email] (#408) [Profile/Gallery] (more from CrNiFe) on Fri, 21 May 2010 12:11:45 In Reply to: info re tread separation, Dean, Thu, 20 May 2010 10:40:31 Members do not see ads below this line. - Help Keep This Site Online - Signup |
From my days as a tire guy, the principal reason for tread separation is that the interface between the carcass layer and the tread layer gets too hot, from continual flexing while underway. Heat builds up, and the rubber compounds break down, sometimes gassing out, which allows the fracture to propagate along the tire circumference.
The tread rubber is designed and batched to carry out a certain level of performance, while the carcass rubber has different requirements.
Underinflation can be the real culprit, especially in low profile 45 tires, where it is very difficult to visually detect underinflated tires.
I can see, from my own experiences with two 9-5 SportWagons, that low profile tire, with camber and toe scrubbing and low internal air pressure would suffer from a combination of effects.
The only way to prevent the issue would be to have the valve cap pressure indicators as well as a camber check.
regards,
CrNiFe
Toronto
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