Features:- For a safer journey.- You have full control on icy roads with the Marathon Winter Plus.- Even in tight bends and under violent braking everything remains under control.- For best possible puncture protection it now comes with a SmartGuard layer.- 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.Specifications:- Inch size = 28 x 2.00- Etrto size = 50-622