All models of Atera Strada fit all UK 50mm tow bars without any adjustment; you just place the Strada on the tow ball and push down the handle - no spanners or Allen keys are required.
They require at least 30mm of clearance between the tow bar and the bumper to fit, less than most tow bar bike carriers.
This fitting process can be applied to the DL, SPORT, VARIO, EVO, E-BIKE and E-BIKE ML models of the Atera STRADA and is to be used in conjunction with and not in place of the instructions provided with the carrier.