not only is it light --- they inflate the tubes with helium ...
but really, it's perfectly average compared to other bikes in its class -- hence the price .... super, feather weight status, you're paying twice the price.... paying less, you're going to see a heavier bike --
in the bike world, the term "you get what you pay for" goes a long way..
typically, you pay more for less.... less weight that is --- same is true for lots of sport industries