I bought these chains, because I go to the skiing in the winter a lot. Did they promptly on my first exit required. The Assembly on the stand is super easy and quick. As annoying tensioning the chain is eliminated. What really amazed me is the disassembly. Through the self-releasing closure makes fumbling in the wheel well is finally over. Simply wrap the chain dismantle for guidance and continue. This takes less than 2 minutes. The snow chains Pewag servo RS74 is highly recommended.