New for 2008 is the EC90 TT carbon. Based on the EC90 Aero, but with a new aerodynamic R4 TT front hub that creates 50% less frontal exposure. The Easton carbon 56mm deep cross-section rims offer incredible rotational and lateral stiffness providing quicker acceleration and a smoother ride while cutting through the air. This hand-built wheel set essential equipment for time trials and triathlons.