Just remember to break them in !
http://www.tirerack.com/winter/tech/...jsp?techid=151
Special consideration is required when breaking-in new studded winter tires. In order to facilitate installation of tire studs, the tread is often lubricated (a 2% soapy water solution is desired) to allow the special tool to spread the rubber and insert the stud into the bottom of the molded hole. Once the stud is in place, the tool is removed and the tread rubber compresses around the stud's flat head and cylindrical housing to hold it in place.
Because it takes some time for the lubricant to evaporate and the tread rubber to compress around the stud, studded tires require a special break-in period. Relatively slow driving (less than 31 mph/50 km/h) without hard acceleration or braking is recommended for the first 62 miles (100 kilometers). This will allow the lubricant to evaporate and the tread rubber to conform to the shape of the stud.
Studded winter tires are not recommend for high speed driving because high speeds, as well as excessive tire spinning, can cause studs to be ejected.
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