go FPV 19". look tough.
If it rubs just get the guards rolled. depends how low u go aswell
just take it easy turning into driveways etc at certain speeds. let us know how u go mate.
once upon a time i had 18*8" wheels exhaust was 6cm off the floor no rubbing anywhere just like i said had to take it easy on speed humps and turning into driveways thats when it would rub happened maybe 2-3 times in about 2 years. good luck.