to each his own on the cleaning, I doubt someone looking at a ramshorn schwinn would be to worried on the condition of the chain or bearings. a lot of collectors get stoked to see that 50 year old bike untouched, dirt and grime included. yes sometimes a good cleaning uncovers a beauty,sometimes lots of flaws. I always tell someone don't touch it, but that's usually if I'm the interested buyer. then does the seller know what their doing, I've seen decals scrubbed off, original tires throw away, etc. good luck with the bike which ever way you go