How old is your bike?

[laura*]

And here is DH working on his 1986 Schwinn World Sport:
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Oooh! A twin or near twin of my 1985 World Sport!

According to Schwinn catalogs I found online, the World Sport came in "Charcoal" in both '85 and '86. It looks like the way tell the year is by the components: 85's have an SR crank and Sun Tour shifters/derailleurs while 86's have a Sugino crank and Shimano shifters/derailleurs.

I'm rebuilding mine for indoor trainer use. It is getting all new components - only the frame, fork, and seat binder bolt are getting reused. I don't quite know what to do with the original components...