Just a simple question. What is the difference between offset and backspacing on a wheel. I assume they measure the same thing just in different ways. Is offset measured from the "offset" of the center of the wheel? example a 17 x 9 wheel with a 24mm offset (aprox 1") would have 4.5"(center)+1"(offset) resulting in a wheel with 5.5" backspacing? Is this right or am I way off? BTW: Off topic but I can't see any of the pics on stangnet anymore, not even by just clicking the links of attached files. Does anyone know whats going on all i see is the latemodel mustang stangnet logo?