I've got 225/45/17's on my 17x7's oh yeah, rims weigh an astonishing 17 lbs each!!! car sticks like glue to the road, i've taken a 90 degree curve with a rating of 15mph at around 45 with them.

yeah, don't try that, it was scary as fuck!!! mainly cause you cant see the other side of the curve.

below is a pic (contrast and brightness changed so you can see tire profile)