first you need to know the size you need...this could be a bit confusing, if you know a good lbs they might help you out...you can always try measuring yourself. I find fit to be the most dificult part of buying a used bike....

1 year ago i bought a very nice road frame, painted decaled it and built it...then i realized the frame was too big 56x56 when im usualy a 52... i rode that bike and got used to it, but i knew a better fitting bike would help me a lot on longer hauls.

Whats your budget? can you wait and save a bit to buy a new bike?0