Quote:
Originally Posted by Avda
. Went on the highway and the shimmy steering wheel had disappeared... So is this pure luck or... The tires are Pirelli Cinturato's runflats.
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Pressure can make a difference. A good static/dynamic balance can be made, even on a tire that is not round. If the tire is not round, it can cause more vibration as the pressure is increased. There is not as much flex in the structure to absorb the run-out, which is the cause of the vibration.
A road force balance will likely show the error and whether the tire can be remounted and brought within acceptable tolerances.
Remember even bent rims can be 'balanced', but the wheel doesn't run true and can vibrate once carrying load.