My SSR's were 9 ET3 on the front and they had a 5mm spacer to clear the calipers, but they weren't the brake clearance centre disc where as the works are the A disc which is the most curved they do apparently, the rear is O disc which is the next step down, they had no L disc which is almost flat.
I should have plenty of space with the front wings so i don't mind running a spacer to clear brakes