Originally Posted by
prathmann
Considering that one has pedals, disk brakes, cages, and aero wheels I'd say not 4-5 lbs., but at least 1-2 which is about what I'd expect based on frame material.
You forgot to mention a lighter groupset and
much lighter, carbon crank on the Roubiax. Not to mention extremely light, carbon fiber cages. AND the bike is a full size smaller which is a considerable weight difference right there. Much fewer spokes on those aero wheels as well.
I know, its hard to justify, but there are numbers and they don't lie.
Don't forget the price difference as well. At least half if not more for a bike that weighs roughly the same.
But hey, for $5600, you get a nice pencil holder built right into the side of the down tube on the Roubiax
