They appear to have been designed in a similar fashion to other manufacturers (Wagenswest, French Slammer etc) but without the cutting and welding of original spindles to make them. As such I wouldn't expect an increase in track as with the others and they state they can be run on standard 14" wheels so would expect the drop to be around 2.5". I'd be interested in the quality / figment of them, but at the mo there aren't any available for drum brakes. Certainly, they are substantially cheaper than the alternatives!