I may have misheard him, but I thought he said 9-10 db with the foam inserts. Sounds like you know way more about the way this works than I do. Sorry for any confusion.
I only believe ~50% of what the service techs tell me. haha Normal highway road noise is ~70dB so bringing that down to normal conversation volume would be huge. I've not seen any tires that can make this much difference. dB chart for reference:
Thanks for sharing. I should clarify. He meant the foam would reduce existing road noise by 9-10 db. Not sure if this helps.
Maybe was talking about the “new” ev tires lol Michelin's new carbon-neutral EV tire aims to serve electric sports cars better
These are XL in the 19” size that I got. I have been driving the Pirelli P7 A/S Plus2 since December and can confirm they are definitely quieter than the oem Continentals.
I would imagine that is pretty much what the Primacy MXM (OEM 18" tire) looks like with its foam insert
Supposedly China Tesla is running these new EV tires.... maybe there is some review out there in Chinese.
Also, the Goop imitation that Tesla puts In their tire repair kit won’t work on foam filled tires. If you have a puncture, the foam prevents the goop from getting to it to seal it.