MuuMuu, wasn't responding to you and yes you are correct in that the tire sizes he mentioned do require a 7" rim.

However, Crizila's comment on 60 series being too wide is archaic, that's a bias ply designation no one is talking bias plies here.

They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.