I have never done it - my daughter lives in NYC & has tried to get us to come up and do it but we have not. (she is not a cyclist so she would not have been participating).
From what I have heard, it is HUGE - like, 30,000 people jamming the streets (mimi, no there are no trails - it's through the streets - don't know if it is supported). I read somewhere that some cyclists go off-route just to get around the crowds, otherwise you end up walking your bike for long stretches because of the "traffic jam".
I THINK the total distance of the ride is 40 some miles...?
"When I'm on my bike I forget about things like age. I just have fun." Kathy Sessler
2006 Independent Fabrication Custom Ti Crown Jewel (Road, though she has been known to go just about anywhere)/Specialized Jett