Recently I've been riding a trek mountain bike I got for free.
This week for the princely sum of $45 I picked up an 84 Fuji del rey 12 speed. 27" wheels 1 1/8" wide, new looking dry rotted tires, the paint is near perfect except where someone bolted on a Schwinn generator. There's hardly any rust on anything. I'm learning the setup, I adjusted the seat and handlebars, I'm a little more comfortable on it but it needs tires before I ride any further than I want to walk.
I'm amazed how much faster I am on it, places where I formerly pedaled to keep going, this bike requires brakes. The reports I read say the frame is excellent, the rest is slightly above average. I'm seeing the need for a helmet. lol.