whats the best way of finding out what size sapcers you need?
i have tired to put the wheel up to the hub and see how fat away the weel hub is from the hub on the car but due to the design of the wheels is hard and i don't want to get it wrong as they are expensive.
i think i need 20mm spacers but whats the best way to measuring?

Buy loads of cheap washers and stick 2 bolts through the wheel to see if there is enough space to clear the calipers.

Chris

exellent idea. thanks mate.