That looks exactly like the 86 400 elance I had years ago (same components, paint, etc..). I just went to the vintage trek trek site and that SN is towards the end of the range for bikes serialized in 85. That means it was made in the last couple of mounths in '85. Seeing as they start making (and selling) many months before in the year previous, at that time they would have been making '86s, so this makes perfect sense.

Yeah, the person selling the bike bought it on ebay recently but that doesn't mean anything. They're either a flipper with a good eye, or the bike is really too big for them like they say in the auction. The person has good feedback.

However, having owned an 86 elance 400, I would not wish it upon anyone to own one. The ride was all soft and mushy and dead which is not my thing at all.