On 3/22/21 11:27 AM, (-Phil-) via EV wrote:
They are not "filled with foam", they have a foam belt up against the inside of the tread that's designed to make the tire quieter. This is common on EV tires because tire noise is one of the largest sources of noise at highway speeds, however since most of this noise is generated on the outside of the tread, the foam has only a small effect. It does not affect ride.
I don't believe the sound deadening foam that is common to be associated with the "self sealing" feature of the Bolt tires.
Up in Montana, near the Lima SuperCharger, I had need of a flat repair on my 3. The tire guy cut a section out of the foam, 2"-3" across, to access the puncture. He was about to leave out the cut section but I had him glue it back in place. I doubt that it made any difference one way or the other.
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