Originally posted by CreoWRX
That statement's not entirely correct. A lot depends on the shape/design of the wheel as well. For example, Rota SDRs and Tarmac IIs have a 48mm offset and clear the STi Brembos. The Prodrive PFF7s have a 51mm offset and also clear due to the curvature of wheel.
PFF7's are 18 x 8.