I weigh about 260 pounds and I need to lose about 40 pounds. I used to be embarrassed riding a bicycle being overweight but I am also embarrassed about being overweight in general. So I decided to start riding my bicycle, and if somebody does not like the fact that a fat guy is riding a bicycle, they can kiss my fat you know what (I am not cursing on these forums just in case a child that love riding bicycle is reading this forum).
And even if they do, I always remember how happy I am making the people that love me happy by getting my weight under controlled. My doctor even told me if I lose 40 pounds, he will donate money to a charity of my choice.