Vehicle & Technical > Discovery

Tyre pressure

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glaggs:
Would agree with all but the last statement.

Tyre stiffness can influence the way a tyre handles under external forces but air mass in the tyre is of primary importance as it controls tyre (and therefore rubber) temperature as well as maintaining shape and therefor controls the amount of grip the rubber has. The tyre will have been designed to give an optimum grip/ware rate at a set temp range. This is controlled by air in the tyre. A tyre run with too little pressure runs too hot, too much it runs too cold. But when you put larger tyres on they can handle a lower pressure to give the same temp. The tyre construction does also influence the temp caracteristics of the tyre but as a user the only adjustment you have is the pressure.

cardiff_gareth:
so what does it mean then when the rear n/s tyre has a wear band on the tyre wall where it has rubbed on the road :?
That was running at 36psi :?

glaggs:
Without having the chance to inspect the tyre and fitting its hard to comment, but a correctly fitted tyre run at manufacturers recommended pressure shouldn't show wear on the side wall. Either the tyre is faulty, it has been incorrectly fitted or someone uses the tyre as a guide for finding the curb. 2psi wouldn't realy be enough to make that much difference on tyre deformation. If you've got wear on the side wall the tyre would have to have been run at less than 10 psi, I wold check to make sure it isn't catching somewhere or that someone isn't runing the tyre against the curb.

Range Rover Blues:

--- Quote from: "glaggs" ---Would agree with all but the last statement.


--- End quote ---


Only going on what the engineers from Avon told me :?

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