Bart Aernouts

A meticulous worker who turned his hobby into
his profession with great attention to detail.
Successfully so, as his Ironman achievements
impressively show.

Bart Aernouts was the second athlete ever to break the legendary eight-hour barrier at Ironman Hawaii. 2018 World championship runner-up – with an outstanding bike split of 4:12:26 h that got him in fourth place on the eternal leaderboard of individual disciplines.

This success is many a thing – but no coincidence. Bart works hard for his success. “Comfort, power and aerodynamics are the keys to a fast bike split”, the Belgian professional athlete knows. So, it’s no surprise that he and HYCYS’ aerodynamicist Jonas have already worked on his optimal bike position several times in the Cologne-based bike fitting laboratory and at the velodrome in Büttgen. There are so many details to improve on the way to perfection: Whether it’s finding a stable seating position, saving additional watts or validating the position after changing an equipment sponsor.

Bart – Overview

Sports: professional triathlete and 2018 Ironman World championship runner-up

Services: BikeFitting, AeroFitting

You too can start your fitting process to increase comfort, stability and performance on your bike – no matter whether you are a triathlete or a cyclist.

Learn more

Saisonstart für die Radsport-, Triathlon oder Lauf-Saison mit HYCYS

Handling COVID-19: 2G-rule in our institutes

Due to the current escalation of the infection rate around the COVID-19 virus, the 2G-rule is applied to us from Monday, November 22nd, 2021.
BikeBeratung für den Rad-Kauf

Fancy new bike? Check out or bike consultation!

Are you thinking about buying a new bike soon? You and your new bike should feel like an entity right from the start. And we’ve got the perfect offer for you!
Menschliche Physiologie im Ausdauersport

Physiology as a cornerstone in cycling and triathlon

Read on to find out what factors performance consists of, what is necessary to be able to perform and how performance is increased.