It`s quite simple...first you find a tyre surface that you like, as you can see your tyre surface is repeated within a 360º circle.
then you need to model just "one" peace of the tyre surface
(depending on the tyre surface complexity) put it in the right position then duplicate along the tyre.
x=desired rotate angle
N= number of turns
My english is note very good i hope i could be any helpfull.