Many of us averaged close to 30k/hr for the day, and occasionally exceeded 40k/hr on some flat stretches with a bit of a tail wind. We did break up into a couple of groups, so as long as you can pace at least 25k/hr, you'll find a couple of people to ride with. We may do this again in September, or other GO Train rides, so stay tuned to this or the TBN website for details.