my suggestion.. jus run like hell.. one u have come down 195 pounds.. then start to cycle to lose weight.. cause cycling does'nt really help lose weight.. or atleast thats what my doctor says.. cause i was also about 250 pounds.. he told me to just run everyday for about 1 mile to start with and then slowly increase the distance.. but still cycle for fun.. don't use it as a means to lose weight.. and about the bike, check out the $500 mtb thread..