19"/20" rims are fine on superlows....unless u buy some nice springs and F**k good shocks your ride will become as hard as s**t buutttt will still go fine....but yes like the guys say and I know from running superlows all round on 19"x8" rims with 235x45s...get the guards lipped/rolled/flared/pumped....guards will scrub and u will tear chunks out of your tyres with hard dip turns trust me lol