IAx Advanced Ultegra Di2 Size:54 cm The back and sides feature

The back and sides feature Air_O Stretch fabric

designed to fit loosely around the body

Color: Rainbow

Compact “Kit” unit size: 7

Ultimate power

IAx Advanced Ultegra Di2 Size:54 cm The back and sides featureThe IA has been the most successful triathlon platform Felt has ever created. As they introduced the IA 2. 0 and its industry leading technology, Felt updated the prior IA to become the IA "x". This "new" version eliminates the nose cone and one piece front end from the old version to help with more fit options across a wider range of athlete levels. IA speed in a streamlined package complete with Shimano's performance oriented Ultegra Di2 12 speed