Specifically developed for vehicles with high powered engines, pewag servo offers the comfort of stationary mounting and high reliability under all conditions: a snow chain that will especially satisfy frequent drivers. Usage  • Recommended for vehicles with front-wheel drive  • Ideal for city driving / paved roads  Product Information  • High quality chain with innovative technology  • pewag servo ratchet tensions the chain automatically – manual tensioning is not necessary  • Easy removal through self-opening inside lock  Additional information  • Independent product testing  • Mounting support online  Technical Details  • Ö NORM (Austrian Standard), TÜ V-certified (German Association for Technical Inspection)  • Tight chain mesh in material thickness of 3.