I'm a big guy, 6'1 350 and looking to get in better shape. I recently saw the actor Ethan Suplee(Louis from Remember the Titans, My Name is Earl, American History x) had lost about 200 lbs through biking. Now, I know most mtn bikes are designed for 200-250 lbs so does anyone know of bikes that can handle more weight. Will be street/dirt road riding...not going to go on downhills or jumps.