Bobby Sidhu

Hey guys, new to this forum! I need some help figuring out which rims and tire sizes I should use on my cls. It is 2012 cls550 4matic and I would like to get 20" rims. I know the wheels come staggered from the factory, so I was wondering which staggered size should I run? Is there any preference for 20" tire sizes from your experiences? I am worried mainly about the tires rubbing and causing damage. I am currently looking at the niche tagras...they seem to look very sporty and would suit the car well. Any input would be appreciated. Thanks for your help!

unlukky

20x8.5 with 25mm offset up front.
20x10 with 32mm offset in the rear.