When I first started road biking my goal was to go from 205 lbs to 165 lbs. In 2 years I went as low as 139 lbs. The goals the next 2 years was just to keep my weight around 145 lbs or lower.
Right now I'm 150.4 lbs, so my goal this year is just to lose around 6 lbs! But now I work full time and don't have to much time to bike so 6 lbs can take a month!