Aerodynamic efficiency combined with a highly functional selection of components—it's all yours with Felt's IA 16. Taking full advantage of Felt's wind tunnel expertise, the heart of this triathlon bike is an exceptionally aero, high-modulus carbon frame with deep-section frame tubes and Felt's own integrated stem and fork to pierce the wind. A pair of 30mm-deep Felt rims clean-up dirty air and reduce drag. With Shimano's 22-speed 105 drivetrain along for the ride, the IA delivers fast, dependable shifting, while the Microshift bar-end shifters let you stay in your aero tuck for maximum efficiency. And, since a comfortable rider is a strong rider, the IA 16 comes spec'd with a supportive saddle, a completely adjustable Felt Aero seatpost, and Felt's base bar and f-bend extensions.