New answers tagged leak
The problem you describe with new tyres on alloy wheels can happen if the lacquer (shiny finish) on the wheel has become oxidised over time. When fitting the tyre, the bead seating on the rim should be pristine. If there is any oxidisation, bubbling or bumps, on the wheels bead seating it must be removed. With a rotary wire brush the bead seating should be ...
I suspect the problem is not with the tyre, but the wheel - are they alloy wheels? What often happens is that the edge of the rim corrodes slightly, which stops the tyre from sealing properly against it, allowing air to seep through between them. It's also not unheard of for alloy wheels to become slightly porous, allowing air to actually seep through the ...
I think the problem is not the tire. It is the tire valve. Did you changed them too? If you drive much faster, the tire valve deform because of centrifugal force and open this little leak. The valve could be just damaged by mounting the tire.
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