>>1774737It really depends
that's the era you want, steel, rigid, but
Hard Rocks are at the bottom end of the specialized tree. It goes hardrock - rockhopper - stumpy
It's bottom of very good, I think they're still quite good frames but with plain gauge cromo they're heavy. And the parts on them aren't worth much. Like you've got plasticy brakes and probably a steel seatpost which is heavy and hard to adjust.
Boomers often think their bike is mint condition because it's clean and they haven't ridden it in 30 years.
But actually, what happens is all the grease in the bearings and shifters dries up and becomes gum, the tires dry-rot, the brake pads become rocks and the cables all rust/crack.
So their 'mint' garaged bike requires a complete overhaul.
What you're getting is nice paint, good chainrings, and un-worn rims. Worth paying for but unless you want a full project that type of find is less desirable in many cases than something which has been ridden a lot more. And for a project it's only marginally worthwhile because you end up spending so much time and money on consumables and upgrades and it would be better to start with something better.
The new cheng shin tyres are a sign it might have been through a bike shop but whether they actually did the real work or not is hard to gauge. If the bike has been overhauled and you like it, i'd go up to ~180. Otherwise i'd want to pay lower than 100. Like 50 or 80