Wow. I have to say, congratulations -- even though you didn't finish, you rode a long way at a fast pace in *terrible* conditions. And it was your first big group ride and only your second ride in the rain. Really, it was a great accomplishment. And you've learned from it, which will help you so much on future rides.
I remember once seeing a mountain climber on a TV talk show, I think he was plugging a book that he'd written. He said that a successful climb is not when you reach the summit -- it's only a success when you make it back down to the bottom safely. You were facing a dangerous situation with the weather, as you saw with the folks who had hypothermia. Given the conditions, I think you made the right decision to stop the ride. It's better to stay healthy and try again another day.
I'm also impressed that so many people showed up despite the weather, and that there are so many willing to take on the challenge of this ride. 22 km/hr is roughly 14 mph, which is a brisk pace for a hilly ride.
And I'm so glad that your new bike is working out well for you. It sounds like you've gotten a lot of positives out of the experience and are focused on the future. Good luck and have fun with your training!!
Oh and p.s., I took a great first aid course recently in which they suggested bringing a mylar emergency blanket on rainy/cold rides. Other folks here on TE have also suggested it -- they take up very little space in your bike bag but could really help in cold rainy conditions.
http://www.rei.com/product/407104/sp...rgency-blanket
- Gray 2010 carbon WSD road bike, Rivet Independence saddle
- Red hardtail 26" aluminum mountain bike, Bontrager Evoke WSD saddle
- Royal blue 2018 aluminum gravel bike, Rivet Pearl saddle
Gone but not forgotten:
- Silver 2003 aluminum road bike
- Two awesome worn out Juliana saddles