For a safer journey. You have full control on icy roads with the Marathon Winter. Even in tight bends and under violent braking everything remains under control. The spikes work best on ice when running at minimum pressure, while at maximum pressure the tires can be ridden on ice-free roads with minimal road noise.
In order to ensure that spikes are permanently fixed, tires should be run in for about 25 miles (40km) on asphalt, while avoiding any fast acceleration or heavy braking.