One of our club members made it to Brest in less than 21 hours, I think he was among the first out there... he was knocking out a 600 in 24 hours, but he was also a RAAM finisher so that probably has something to do with it... not sure how the rest of his ride went actually, should go and have a gander at the finishing times. None of his brevets were under 30km/h moving pace, and his control stops were all planned ahead of time, so he knew what he was getting, in and out in a few minutes kind of deal.