Tested and retested, we subjected the Airfoil Pro SL Special Edition to more wind tunnel action than any other bike we make. What did we learn? This bike is fast! More specifically, it’s faster with a rider aboard, and even faster with a rider aboard fighting windy conditions. For 2010, we introduce a new EMS PRO® Airfoil adjustable seat post that allows for easier adjustment, and reduces the bike’s overall weight. SRAM Red, Zipp wheels, and Zipp bars compliment the 800K frame and EMS PRO® SL fork.