I really don't understand the penchant for scouring Craigslist for 80's MTB's to use as commute rides. 1980 was almost 40 years ago. $145... really? $100?... I don't know... even allowing for some haggling... you're going to need road tires. That's $35. Each! And if its a real MTB the gearing is going to suck for commuting. I'd sooner buy a road oriented BSO... new... for ~$175, but if I were going to go used I'd be looking at touring bikes.

H