Slam it to the deck!!

I had my old XR2i pretty low with 16 inch alloys, they rubbed a little on full lock, but the back was solid and had no chance of rubbing!

Not sure how it is with the ST, but BabyBoom's loks really good! also I think the turning lock is pretty poor on the ST so I wouldn't have thought you'd have much problem. Still BabyBoom will probably have the answer!