>>1104596>>1104668Ok so I got a better look at them.
High Sierra:
Suntour xc rear and front derailleurs, sealed bearings, sakae cranks, roller cam brakes that seem to work well, everything spins/shifts well. Just needs new tires and tubes. They might be from when the bike was new... Extremely happy with this one for $22.50.
Mirada:
Shimano light action rear and Shimano nameless front derailleur (logo is just stamped onto what looks like bent thick sheet metal, looks cheaper), Sugino cranks, canti brakes. Front wheel rubs a bit on brake but shouldn't be hard to adjust out right? Rear hub and crank spin well, everything shifts well. Also has tubes and tires that look as old as the bike. Overall still very happy with it for $22.50.