Originally Posted by
4evrplan
I like the Rockhopper for $75. The first thing is to find the size of the bikes. The TRek 800 may be a little tall, but test ride it first. At 5'7" I would think a 17.5 frame would work well for you.
I wouldn't worry about the frame rusting as much as the chain and cables. Keep both of them wiped off after a rain and well lubricated to help prevent rust.