Hey guys i'm new here and currently interested in mountain biking. I own a road bike and a BMX but i'm looking to expand my collection with a mountain bike. I'm more interested in trail riding and dirt jumping as i like to mess around and jump stuff. I need some opinions though - Would it be wiser to buy a used bike or buy a new one? Im not a master in cycling but i know enough to get by so I can build a bike. Im looking for more of a DJ frame so i can raise my seat for trails and lower it for jumps. Anyone know of any places to buy a used frame? I cant seem to find many anywhere. All help would be gladly appreciated.