Getting into cycling and can't decide between the Specialized crosstrail pro disc, the Specialized Sirrus Limited, or the Trek 7.7fx. The limited and fx have carbon fiber frames so that's a plus, but the crosstrail looks cool with suspension fork and disc brakes. Does anyone know how much any of these bikes weigh?? I imagine the Crosstrail weighs the most b/c it has the suspension? Other bikes on my list our the Cannondale bad boy 1 and Giant escape rx 0. I just can't decide.