LuxuryDetailsll

Hello everyone! I have a 2018 c63 cabriolet that I ordered a set of vossens for. The rims are 20×9 for front and 20×10 for rears. I am also lowering car an inch with eibach pro lowering kit. Can some one help me choose the proper tire sizes? Mainly the proper width for these size rims. Contacted the company I got the wheels through and they are not much help at all. Can't seem to find any contact info for vossen. Will most likely install spacers also for a flush fitment. Thanks!