It's noticeably lighter than the Barcelona, which weighs in at 30 (according to the website--I haven't taken it on the scale...). In fact, I've been offering (generously) to carry his bike up the stairs, so he can take mine up for me.
Of course, I've got the basket, and I usually have lots of stuff in it, which is probably making it even heavier.
The cut out interestingly helps with picking the bike up--it makes an easy handle.