If you're looking for the fastest, most balanced performance road bike on the market, the Madone leads the pack. Besides its impressive looks, the Madone excels in stiffness and efficiency, yet provides unbeatable comfort. Want it custom? Check out Trek's Project One options in Featured Items (link).

The R3 was designed to dominate the world's toughest bike race: the Paris-Roubaix. You'll immediately notice the wide, but ultra-thin seatstays. These resist torsion while providing vertical compliance. The seatstays coupled with a squoval downtube and chainstays provide incredible power transfer from the crank to the rear wheel while being comfortable in the saddle.

Looking for a road bike that's aero, stiff, light, and comfortable? You'll find the S3 to be the perfect balance. This sub-1,000 gram frame offers incredible aerodynamics, class-leading bottom-bracket to rear wheel stiffness, and surprising comfort.

Just getting into road biking? The Trek 2.1 and 2.3 offer a lightweight, race-worthy ride and a great value to boot. The bike is perfect for beginning roadies, weekend warriors, and aspiring racers.

Cervelo also makes an incredible aluminum road bike -- the S1.