Transiro Aeris LD R1A lightweight performance triathlon bike saddle designed with a split nose for unrivaled pressure relief during long races without sacrificing stability or support. THE SCIENCE OF COMFORT & SPEED Innovation in bike fitting analysis alongside research on cycling aerodynamics led us to rethink our triathlon and time trial saddles. In a field where marginal gains are fundamental, being able to provide a saddle that allows comfort in the most extreme