Infiniti FX35 20'' Sport Rims on M35x

[JayM35x]

I recently acquired some FX35 20'' sport rims that came off of a 2006 FX I myself have a 2007 M35x and would love some suggestions for tire sizes to use from some of the more informed members here. I have been leaning towards 245/40/20 or 245/30/20 fyi I live in brooklyn, ny so my streets are somewhat rough I want a bit of a low profile look but nothing too crazy just enough to still look good but protect my rims any help or info will be much appreciated.