53mph was pretty uncomfortable, mostly because I was passing someone at the time and as I came out of their draft and went by I got a little headshake/shimmy in the front end and wondered if I was going down. I'm not sure I'd push it that far again.
On the Strava/speed front it was pretty funny to look at the decent on the Kanc highway (not where I hit 53, but a paltry 48) where I did 11.9 miles in 23:36 and currently have the 10th fastest time on that segment out of 400+ people that have ridden it. Much ass was hauled on Saturday, mostly on the decents but we did a passable job on the hills as well.
One other funny picture, here's the big and the little of our team. Marc is 6'-1, #260 and Pete is 5'-6", maybe #150.