1,000 (in words one thousand) kilometers on the bike is quite a lot. Achieving it in 24 (in words, twenty-four) hours was Christoph Strasser's idea in 2021. Before that, he had won the "Race Across America" six times.
The fact that it worked with the thousand, even during the dress rehearsal, is now history, and what a history. The full one is now available in book form.
The fact that I was a very small cog in the whole thing, even if it had 58 teeth among other things, is also in there. Great reading, even for people who don't do ultra-distance themselves.