[Hooben]

You have a beautiful 500 from 1985 in Cadet Blue and Platinum Silver. Nice ride. I think the line went 500, 600, 700, 2100 Grand Velo, and 3100 Grand Velo. That would make yours the entry level road bike. Check out this site...

http://www.sheldonbrown.com/bridgestone/1985/pages/09-bridgestone-500.html

http://www.sheldonbrown.com/bridgestone/1985/index.html

Hope that helps, I like your ride.