I've done a search on this but didn't find anything that I felt positive enough to go off of and buy some tires. I have a 1980 cx500 Deluxe. I would like to put something just a little bit wider on the rear without having to modify. If it's not possible then i'll just go stock. So what exactly are the tires sizes for the front and rear for my bike? And can I fit perhaps one size wider on the rear and if so what would that size be? Looks like the most recommended tire is the Bridgestone Spitfire S11. I like the look of those with the white lettering. I just need sizes and i'll be good to go. Thanks for the help.