Originally Posted by fastforward
Puney, high profile, non-performance oriented tires can be stressed beyond their intention, roll over onto the sidewall (and possibly off the bead) thus suddenly increasing the contact patch and then....due in part to an instant gain in traction,
This is wrong. This is what you KEEP saying, and it's STILL wrong. I don't know how to explain it any better, so we can just agree to call it a dead horse.
Not only will a puney tire NOT roll onto it's sidewall, but having the wheel scrape along the ground will not cause a *gain* in traction. Rubber being scraped across pavement is sticker than metal being scraped across metal.