Do you ever hear people talk about how wide their tires are on their car? Where I come from alot of people will say "hey how big are the tires on your street rod?" and he will get an answer like "I got a set of 50 series on there!" People will ask me if I have 50s on my truck and I answer "no, they are 295/60/15" and then I get a confused looks. Or I will hear someone comment on my drag radials "whoa, 50 series slicks!" Is this just something that was used to determin tire size in the days past or do I just live around a bunch of tarded hicks??