So that means an early decision in the design stage of usable wheel diameters, ie, no 15"'s, which really should not be much of a let down as they will soon become almost obsolete for street use in wide HP configurations?
Wheel diameter would be dictated by the brake package you chose, so 15" wheels would be possible, I think. Would have to check the spindle height, etc. I would not change anything to accommodate a 15" wheel, though. It either fits or doesn't! The more important aspect is the offset in relation to the width to have the correct scrub radius.
