I did the ride with my 11yo daughter. Its a good ride to do with kids, not so much fun if you're already doing long rides on your own. I didn't get to Ft Wadsworth until about 1:30, and was in Manhattan at 3.
My daughter has never gone more than 15 miles on a bike, so this was a big ride for her. She has a pretty nice road bike (Spec Dolce Vita), in fact nicer than 95% of the bikes I saw on the ride, and could keep up until we got on the Belt Pkwy, where she started to poop out. She still wanted to go over the Verrazano, even though we live in Brooklyn.
Still a nice ride on what turned into a nice day.