Quick version of a long story. Im a disabled vet, due mainly to asthma and have been unable to excercise much the past few years. Ive been feeling a little better and me and my family had got some bikes around last christmas. On my first ride I had a flat tire and ended up carrying the bike for over a mile. Also the gears were always messed up. It was a cheap bike. I threw it away out of disgust and now Im looking for something better. I need something a bit better. Im 6'2 200 lbs and my old mountain bike was also uncomfortable. I have been looking at the hybrid bikes and they seem like they would fit my needs. Does anyone have any recommendations on models and what size I would need? Thanks