Quote Originally Posted by saipeme View Post
you may perhaps right on that logic, again its my friends and my driver actual obsevation the claims could be wrong... from other forum who did notice of improvement using the same tire...
http://pinoyfortuner.14.forumer.com/...pic.php?t=2750

to me tire profile of 265/50/R20 has still enough room (132.5mm of sidewall) for giving decent ride it is relatively the same oem sidewall to most compact car...
But a compact car doesn't weight as much as your SUV. By going to a shorter sidewall you have less flex of the sidewall itself and in order to do the tire needs a stiffer sidewall. With the higher sidewall there is more flex of the wall and it can also absorb some of the shock when the tires hit a bump or pothole. There is a reason why off-roaders use tires with bigger sidewall, it allows them to deflate tires without the risk of losing the bead so that they can get better traction in off road conditions, and when the tires are inflated in absorbs some of the shock from the bumps off road.