Widest Street Tires

Does anyone know what are the recommended width tires for the street? I'll go ahead and date myself here :), I remember the days of the 50's and 60's times, which could fit a standard rim. Sorry, actually the 50's took a wider Rim. So do they still have these wider tires and Rims available? I stopped in my local Pep Boys and got a blank stare when I asked the question.

Thanks...

Pat

:wav: