V35 Tyre Question, My Speedo Is Out

[vee35]

I am running 285/35/19's on the rear. The concreting just outside my garage is such that as I turn to point the car down the driveway, the rear wheels are pushed up hard into my guards. I had my guards "half" rolled (ie 45deg angle to horizontal, not 90 - directly up). Even if I had no roll on the guards, they would not rub, but come close. My wheels could definitely do with more poke. I was worried if I got my car lowered it would exagerate the look that my guards were empty, even though I have big tyres; but it looks ok (better if it had more poke).

Find yourself a gutter or uneven piece of ground, and see how you go. I think I paid about $50 a guard to get them rolled (got the guys name from this board). He came round to my place, and did it in less than an hour or two from memory. I got them done as I had no idea what would happen on a hard corner at high speed with a dip in an emergency situation; the least opportune time for a blowout or something.