honda 400ex. super reliable. rock solid engine. not the fastest, not the slowest either, and definatly a reliable machine. i have one and so do a couple of my friends and they r great. we run them in tight woods trails, some times racing, some mud, tons of hills, some times sand dunes. and they are pretty cheap used. 3,000 - 3,500 will get you a really good one with aftermarket mods.