Guido Kunze is the personal brand of Mühlhausen-based German extreme sportsman and endurance cyclist Guido Kunze. Known for ambitious long-distance challenges and record attempts, he documents his projects, preparation, team experiences and setbacks through news reports, photographs and event updates. His adventures have taken him across Germany and to destinations including Mongolia and Ecuador, where he has pursued demanding endurance and cycling goals.

The website also features a portrait, contact information, event listings and extensive galleries covering projects dating back to 2002. Kunze shares stories from his sporting life through the book Viele nennen mich verrückt, written with ghostwriter Thomas Hillebrandt, and appears in public events, including talks and appearances promoted on the site. His projects are supported by accompanying teams and supporters, whose roles are part of the stories he tells.

The site presents his record attempts and expeditions as personal sporting ventures rather than commercial products, giving visitors a chronological look at his achievements, journeys and ongoing plans