>I wanted to buy a set of new rubber for my car but when I looked at some web
>sites, they have different numbers, I know what it menat by 205/50R16, but
[quoted text clipped - 4 lines]
>205/50R16 97V
>205/50R16 87V
The 87 or 97 is the load index. The V is the speed rating.
See the following for more information on the sidewall markings:
http://www.tirerack.com/tires/tiretech/techpage.jsp?techid=33
http://www.tirerack.com/tires/tiretech/techpage.jsp?techid=35
More things to read about tires:
http://www.tirerack.com/tires/tiretech/tiretech.jsp
Check the owner's manual for your car to find out what the minimum
load index and speed rating are for tires to install on your car.

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