Weel your just a little tike... lol the average rider is somewhere around 180 lbs. Obviously because you are new to the sport, i would recomend nothing larger than a 600cc motorcycle, Suzuki makes awesome 600´s that handle great and are good bike to learn on, but with any motorcycle, there are many dangers, over confidence is usually the main one. Get to know your motorcycle, and learn how she handles, accelorates, and stops.