909 A Perennial Performer For the past 5 seasons, the Zipp 909 has steadily got faster, losing weight, gaining dimples, lower rolling resistance, improved materials and it has been the absolute focal point of Zipp’s aero arsenal. Equally at home on the Queen K, on the Kona coast, as well as the European TT courses, it has quickly established itself as the wheelset to have if you are serious. It is one of the fastest wheelsets you can own. Benefiting from more wind tunnel time and further refinement of Zipp’s proprietary manufacturing methods it is still one of the most versatile and effective weapons for racing against the clock in triathlon, on the track and in Time Trials. Razor-like handling and super aero performance is now also available in clincher!