On Saturday, June 10th, we successfully completed our first aeroTEST Day with high temporal savings for our athletes. For a fixed amount, our athletes could do as many aeroTESTs as they wanted within four hours. We had a good response, but unfortunately had to postpone the event due to the bad weather conditions by one day. We had five testers at the event who have diligently tested different equipment as well as changes in their set-up and seating position. Our CEO Sebastian personally looked after the on-site evaluation so that changes in wind resistance value (cda) were immediately apparent.

It was an exciting day, with good temporal savings and new insights for our athletes.

We were able to reach the following overall temporal savings for the particular athlete in relation to the specified competition:

Lea: saving of 01:47 min. on 39,2 km time-trial track in Schwesing only by changing drinking bottle positions
Hanna: saving of 00:45 min. on 31 km time-trial track of the German Road Championship
Sören: saving of 24:21 min. on 180 km long-distance cycling track of the Ostseeman
Björn: saving of 21:39 min. on 180 km long-distance cycling track of the Ironman Kalmar
Jan: saving of 02:41 min. on 90 km half-distance cycling track of the Ostseeman 113 Damp

Here you can take a look at the evaluation of Lea. She rode with a powermeter for the first time. Maintaining the same power performance is not easy and requires a little practice. Therefore, the small difference between the first two standard measurements with the same set-up is acceptable (set-up 1: 0.261 m2, set-up 2: 0.258 m2).

At the beginning, Lea placed her test focus on the positioning of her water bottles. It can be seen that a bottle cage in the frame adversely affects the estimated finishing time (setup 3: 35 seconds). The best wind resistance value (setup 6: 0.239 m2) gets reached without bottles on the bike. For a time trial this implementation is realistic, but not for a triathlon. As a result, setup 4 represents the recommended result for a triathlon, with a wind resistance value of 0.24 m2 consisting of an aero drinking bottle in the frame and no bottle cage behind the saddle. The aero drinking bottle in the frame has a better aerodynamic effect than the aero drinking system at the front handlebars (setup 5: 0,25 m2). Depending on the setup, oriented to a triathlon or a time trial, the individual data always differ and should always be tested as an overall setup.

Lea has also compared her aero helmet (Bell Javeline) with a standard road bike helmet. It is not surprising that the racing bike helmet leads to a temporal disadvantage (setup 7: 15 seconds). To how many seconds or minutes this disadvantage amounts to, is particularly interesting for very hot races. In such cases, the aero-helmet mostly offers poor ventilation and the related increase in core temperature is often problematic. With test data, physical advantages can be objectively compared with temporal disadvantages.

We are happy that Lea will soon be comparing her competition suits and their aerodynamic effects with our aeroTEST and are looking forward to making her and other testers even faster.

We are very satisfied with the first official aeroTEST Day and will soon offer further events of this kind.