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The high-hands time trial position has long been used by athletes seeking greater comfort, but field aero testing (Alphamantis Technologies) shows that a properly supported high-hands position also tests faster as well.
Our test data shows a 3.5% lower average CdA (Variable 1 vs Variable 2 below). This is an equivalent power gain of 14 Watts, worth over 30 seconds for a 40 km time trial completed at 375 Watts. For a full distance IRONMAN completed at 290 Watts, this is an equivalent power gain of 10 Watts, worth over 100 seconds.
A properly supported high-hands position allows the athlete to better execute aero techniques and improves position consistency. The net performance gain from an improved aerodynamic position has a very significant impact on time trial performance, across all disciplines.