I'm looking into buying a mountain bike to ride on some mild/moderate trails as a fitness/leg muscle building routine. I'm a complete newbie when it comes to mountain biking. I live in the Orange County area.
I'm considering the Trek 4300 w/o disc brakes in a 16" size. I went to go see the bike and he recommended a smaller size for me since I was planning to get more agressive when I become more experienced. My budget is somewhere around $400.
Is there anything I should know or any other options I should consider? Please enlighten me... any comments are welcome!