I have a very nice road bike so riding on the street is all I do. I'd really like to have a second bike that I could use for easy trails and rail-trails. Most of the rail-trails are crushed limestone I think so just about any fat tire bike would be ok. There's just no way I can spend much money on another bike but I'm not about to go the X-Mart route either. Anyone got any advice for a cheap bike that's not a total piece of junk? Doesn't have to be anything special. Wouldn't even be ridden all that much. Just need a nice bike that would allow me to ride some trails from time to time. Any ideas? Thanks!!