These bikes weigh about the same, but I'd have to wait till at least late March for the carbon Lust Advanced 2. The Lust 1 supposedly has better, lighter components. I would add dropper post, lighter wheel set and maybe go to 1x11. I tried the 2014 Lust 1 in xs while traveling out of town and it felt good. Any thoughts on waiting for the carbon? They were late coming out last year so they might not be ready in March. I am 5 feet tall, older rider, not very aggressive - just like long rides in the mountains.