I really want to mountain bike under $ 500, which brand or model should I?-Jonathan?

Please tell me what mountain bike im looking for the 2007 Specialized Hardrock Sport, rocktrail malvernstar 2008 or Diamondback Response 08

I think based on that bike you think you are new to mountain biking. If you just want to learn, and this bike is a fun, easy trails, then all of the big wheels. I'll add to your list Cannondale F7 Disc. Http: / / www.rei.com/product/759996 Top of the list and would like to make special Cannondale relatively close, if not over. I agree, after that says you should buy a better model. If you already an experienced rider who is trying to make no difference between the expert-level riding hiking, cycling, that you mentioned are good.