Diamant SG2 FixMatic has been specially developed for the FIX4BIKE towbars. These are towbars with 2 extra bolts on the side. In addition to Fixmatic bicycle carriers, regular bicycle carriers, trailers and caravans also fit on a FIX4BIKE towbar ball. A Fixmatic bicycle carrier, on the other hand, does not fit on a standard towbar ball. A big plus of a bicycle carrier with a Fixmatic coupling is that it always sits properly (firmly and straight) on the ball. Naturally, the specifications of SG2 Fixmatic are unchanged and the same as those of the SG2.