Unless the Fat Cyclist is also a Short Cyclist, he probably isn’t obese
Perhaps he
is short. Perhaps his definition of "fat" doesn't equal your definition of "obese". Depending on the person's height and build and muscle development he could, indeed, be "fat". I think a person who "ought" to be at about 134 lbs (not extreme for someone 5' 5" or 5' 6"...or even 5' 7") would be considered "fat" if he were 50 pounds heavier than that.