Makes sense. I was thinking that it may have something to do with the Autobahn. Thank you for the explanation.This is due to the higher speed you are allowed to drive especially on the "German Autobahn". So the rims must be strong enough to stand the high velocity and the brutal force which affects the driving components of the car driving at high speed (we speak of 120 mph and above; I drove already 150 mph with the TRX on the Autobahn). In addition to that the traffic is much more intense on narrower roads. Therefore all aftermarket components must be testet and certificated bevor installing.







