Trek Madone 2.5
Instead of throwing the Madone 2.5 into the never ending battle between aluminum and carbon fiber over weight, stiffness, and durability, Trek uses the technology in which the materials have equal footing: aerodynamics. Both materials can be molded equally well into aero designs so Trek's drag-reducing KVF tube shape translates easily to aluminum frames. The bike also includes lightweight and smooth-shifting Shimano Ultegra components and removable mounts for rear fenders. It falls short of the competition with heavier steel and aluminum saddle rails and seatpost respectively, although the additional weight is negligible to all but the most discerning racer.