Ok here's some pics of what I now know is a 1976 Nishiki Olympic that my dad bought new in 76. My dad barely rode it. It was rebuilt in 1986 with new wheels, tires, gears, and brakes. Since 1986 it has been out once sometime around 1998 or1999. I cleaned it off with a lot of Zep Citrus Heavy Duty Degreaser. There's some corrosion but nothing serious at all just spots here and there. Is there something I should do to adress this? Thanks for all the help guys!