I used to have the same setup on my CLK. 19X8.5 in front and 19x9.5 in rear. 225\40 front ...
I used to have the same setup on my CLK. 19X8.5 in front and 19x9.5 in rear. 225\40 front and 275\30 rear. My car was lowered with H&R springs and yes we had to slightly roll the fenders in the rear. Both front and rear wheels required spaceres, but I am not sure of the size.
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