So new to the site, first post. Basically I’m looking for a second bike that I can tool around on when I want to change things up. I’ve found these two that have kind of caught my eye and would love any advice on both/either. Are they worth the asking price? Do I need to worry about anything? Just whatever you can help me with, as I’m a newb to bikes. They seem to both be in really good shape for how old they are. Frame size is the same and they are both equipped with shimano 600. Also, both are asking 300. I haven’t looked at, or ridden either yet, but hoping to do so in the next couple days.

-Trek 2300, in the ad says it’s an EX+. I’m guessing it’s early ‘90s? It’s a carbon frame, the picture show only minor scratches and scrapes, all the joints look to be in good shape.

-‘93 Diamondback Prevail TG. Again, looking at pictures this bike looks like it’s in great condition, almost like ridden only a handful of times then hung in the garage for 20+ years.

I have no idea what I’m looking for, or trying to avoid, so any help is appreciated. Thanks!