Hello, we have for years a bicycle carrier for the dyke (camping holiday) and another bicycle carrier at home, which is attached to the trailer coupling on the car. If we are traveling with the car we have of course only the carrier on the dyke. But we would like to drive on site also a bit by car (e.g. the mountainous part) and only then (in the lowlands) with the wheels make a tour. We have heard that there are meanwhile different systems, which one sow ohl on the drawbar as well as on the trailer coupling can attach. Does anyone have any experience with it? Greetings ROWA P.S. A car rear carrier is eliminated for us (dog in the trunk), even the wheels on the roof we don’t want (we are older and damaged by the disc).