Like pretty much every other tri bike maker, Felt’s new design is built around an age grouper-appropriate geometry scheme. True to their claim that the IA is created around the needs of amateur triathletes, the frame has a relatively short horizontal reach distance to the aerobar compared to the vertical stack height of the front end. Translated, its fit dimensions aren’t overly demanding. It’s dramatically different from Felt’s ProTour-oriented DA time trial bike. The IA’s stack and reach dimensions nearly mirror the Trek Speed Concept and Cervélo P5. In contrast to those two tri bikes, Felt’s smallest size uses 700c wheels instead of smaller 650c versions often spec’d for very little bikes.
The stack and reach dimensions for the five frame sizes are listed below in millimeters.