The pictures it's not so good and I'm going to take better pictures next summer.
At rear the size is 10,5 / 20" ET 18.
At front the size is 9,5 / 20" ET 15.
I have order new barrels at front wheels because I want change the ET. The width is the same but ET is going to be 0.
At rear I have a small rubber noice with 295 tires..... but I'm sure that I don't need to do big modifications.