Tires: Tyre Size, tyre size, snow traction

Question
205/60 R15 91H M+S what is the meaning of 91,H M+S

205/60 R15 91V what is the meaning of 91 V


Answer
Adelani,

Tire Rack has done a better job of explaining Service Description than I could do:

http://www.tirerack.com/tires/tiretech/techpage.jsp?techid=35

But M+S (or its variants MS, M/S, M-S) are the abbreviations for "Mud" and "Snow", and they mean it meets a tread pattern description for an all season tire and would have some amount of snow traction.  This amount can range from very little to very good.