Sebastian.Herrmann
@chainreaction-bikeconvoy.org

Sebastian is a journalist, author, and long-distance road cyclist. His cycling highlight? Paris-Brest-Paris. He has also published Gebrauchsanweisung für Fahrradfahren (Manual for Cycling). Since 2022, he has traveled to Ukraine six times and helped finance and deliver a total of 36 ambulances to Lviv. The largest and most important initiative was the Chainreaction Bikeconvoy for Ukraine, during which more than 100 cyclists accompanied 14 ambulances to Ukraine in July 2025. Most recently, in January 2026, he drove to Ukraine again with four additional vehicles.

Sebastian.Wilhelmi
@chainreaction-bikeconvoy.org

Could easily spend every day in the saddle, yet he also thoroughly enjoys his work in the management of a media company. It was during his transition from competitive racer to dedicated road cyclist that he discovered not just the sport of cycling, but cycling culture as well. Expanding the artist-driven “Kultur.Konvoi” to include the cycling community became a key goal for him—and for good reason: the more people who lend a hand, the more lives ambulances can save. In October 2024, he helped drive ten ambulances to Lviv as part of the “Kultur.Konvoi.” In 2025, he took part in the “Chainreaction Bikeconvoy for Ukraine,” cycling from Munich to Lviv with fourteen ambulances in tow. Most recently, in early 2026, he made another trip to Ukraine, driving one of four additional ambulances. And now, with an eye on the “Chainreaction Bikeconvoy 2.0” in 2027, the journey continues—onward and ever forward.

Markus.Herz
@chainreaction-bikeconvoy.org

A patent examiner in real life, he has already been on four missions to deliver ambulances to Ukraine. Nonetheless, he prefers riding a bike to driving an ambulance— especially doing long rides, and not only through the rain. He has racked up quite a few miles alongside Sebastian H. on long-distance cycling events. Although he tends to ask himself the big why question on every ride, he simply cannot stop. On the trips to Ukraine however, the question of purpose is always answered: it is about helping people in need and saving lives.

Berlin
@chainreaction-bikeconvoy.org

Andreas is an engineer who works on energy regulation in Berlin from a civil society perspective; in his spare time, he enjoys cycling—a hobby that has evolved into a passion for long-distance rides since the pandemic began. In 2025, Andreas took part in the first “Bikeconvoy,” cycling all the way to Ukraine. Although he was unable to reach his dream destination of Odesa, his visit to Lviv made it clear that humanitarian aid must continue. Consequently, plans are in place for a cycling group from Berlin to join the Bikeconvoy in Poland in 2027, even if the route still does not extend as far as Odesa.

Erfurt
@chainreaction-bikeconvoy.org

Stefan works as a secondary school teacher in Erfurt, teaching German, history, and English. Whenever time permits—and for the past seven years—he has been out cycling, occasionally participating in triathlons as well. As a history teacher, he recognizes that a strong civil society and personal initiative are essential for a resilient democracy. This is demonstrated in an incredible way not only by the people of Ukraine but also by the Chainreaction Bikeconvoy, which he will accompany for the first time in June 2027.

Freiburg
@chainreaction-bikeconvoy.org

Tobi – When he isn’t in the lab trying to save the world, he’s usually out exploring it on his bike. Tobi discovered the Chainreaction through the Schwarzwald Super! and took part in the ride in the summer of 2025. He is now stepping up as a road captain for the 2027 tour.

Julius enjoys tinkering—professionally with software and in his spare time with bicycles—and sometimes both even still work afterwards. He was in the saddle for the 2025 Chainreaction and is now trying to get things moving for 2027—beyond just the cycling.

Garmisch
@chainreaction-bikeconvoy.org

Anke is actually a journalist who took up cycling somewhat by chance. After tearing her cruciate ligament, she needed a substitute for snowboarding; she got hooked after writing an article about gravel bikes for *Bergwelten* magazine in 2018. Since then, gravel riding is all she wants to do. Through her Instagram alter ego, @anke_is_awesome, she pokes fun at “bikefluencing” believing that, despite all the enthusiasm, cycling shouldn’t be taken too seriously. For her, it’s not about who rides the fastest or furthest, or who has the latest gear; it’s about having fun and helping the Chainreaction Bike Convoy for Ukraine secure and deliver as many emergency vehicles as possible! Since 2021, she has also been explaining everything from changing inner tubes to getting the right tire pressure in her “How To fahrRad” YouTube tutorials always with a healthy dose of self-deprecating humor and, occasionally, a mini-pony to help demonstrate saddle height. Awesome!

Muenchen
@chainreaction-bikeconvoy.org

Thomas – a family man and event manager in his daily life, with Belgian roots (it’s *frites*, not “French fries”!) and a deep passion for pop culture spends his professional life bringing people together and striving to make the impossible possible.
For him, the *Chainreaction Bike Convoy 2027* represents a powerful opportunity to provide humanitarian aid as part of a team tackling challenges that would leave an individual feeling helpless and overwhelmed.
His personal track record includes a successful participation in the 1981 RTF (cycling tour) organized by DJK Sportfreunde Dorff and his enthusiasm for road cycling remains as strong as ever.

Ulm
@chainreaction-bikeconvoy.org

Hubert – Outside of his “free time,” he works as a product manager. He spends almost every day on his road bike whether commuting to work, joining club rides, or since participating in the NorthCape4000 in 2022 undertaking longer, multi-day cycling tours. He first learned about the “Chainreaction Bikeconvoy for Ukraine” through an article in *Tour* magazine (issue 12/2024). In July 2025, he rode the convoy route all the way to Lviv to oversee the handover of 14 ambulances. Back in Germany, he organized the purchase of three fire trucks from the Neu-Ulm district along with various firefighting equipment and transported them to Ukraine in April 2026. Most recently, he arranged the acquisition of another ambulance, which he will drive to Ukraine in October 2026. Looking ahead to 2027, the journey continues with the Chainreaction Bikeconvoy 2.0—onward and upward.

Zuerich
@chainreaction-bikeconvoy.org

Stefan – Just as Stefan loves to pull away from the pack on his bike, he also channels his energy into helping those in need. That is why he accompanied the Chainreaction Bike Convoy for several stages in 2025, and why he is working from Zurich to ensure that direct aid for Ukraine continues to reach the country from Switzerland in 2027. His many years in the theater play a key role in ensuring he never runs out of ideas or creativity.

Katja.Schneiders
@bamberg-ua.de

Medical student and actively supporting Ukraine since the beginning of the full-scale war. Initially, she volunteered in Nuremberg to assist Ukrainian refugees and, in early March 2022, organized the first aid transports to Ukraine. To date, she has traveled there more than 30 times and now coordinates logistics for the association Bamberg:UA as the Team Lead for Logistics. During this time, she has not only learned how warehouse logistics, lifting platforms, and pallet jacks work but has also transferred, loaded, and prepared dozens of trucks and ambulances for further transport to Ukraine. ChainReaction is especially close to her heart, as she can often be found in bikepacking mode on her gravel bike during summer vacations.