The 2013 Giant TCR Advanced SL 4 is a race-bred road bike built around Giant’s Advanced SL-grade carbon frame, known for its stiffness-to-weight balance and precise handling.  Outfitted with a Shimano Ultegra drivetrain and lightweight components, the TCR Advanced SL 4 offers smooth shifting, dependable braking, and all-around performance for riders who want pro-level pedigree at a more accessible build.