I bought this bike off Ebay about two weeks ago:

http://www.ebay.com/itm/350488118276...84.m1497.l2649

The seller didn't really know much about the bike, but I did a little research before I bid, and found out it's a 1986 Cannondale SR400. All of the components are original, based on the catalog at vintagecannondale.com. I swapped the broken bike computer it came with for a Cateye Mity 8 that I got for $14 on Ebay, and replaced the back tube because the inner core of the presta valve was gone. It's in amazing shape, and it rides like a dream. The only thing is, I've got some money burning a hole in my pocket, and I want to start upgrading the components on this thing! Where should I start? I was kind of thinking of getting a new saddle because I weighed the one it has and it weighs 457 grams. The seat post is only 255 grams, which seems pretty good. The saddle I'm looking at is the Origin-8 Pro Road saddle. One review online says it weighs 299 grams, which seems good for an 18 dollar saddle. What do you guys think? Where else should I start?