These tires winter loses its two-wheeled terrors. I was initially skeptical that the tire does not really help to sail on the nose. I was disabused. With this tire, I can now commute all year. Installation is simple, although gloves are recommended, pecking the spikes. Under normal conditions, you will hear a rolling noise. A little more effort and a lower speed are the result during dry operation. In case of rain or moisture there is no impairment. On the contrary, here I dug my way through a dirt road, otherwise I go here with my mountain bike and not with the pendulum. But it was funny. The first real use in the snow was sensational! I am biking on all buses passing cars etc. and was the first person in the workplace. All other were stuck in traffic. I'm not talking about big city snow, but of low mountain snow land, over uncleared dirt roads and streets in the city, work and back. I'm concerned, it can now snowing day. It's just fun with the tires.