From your post, you have good physical fitness. But you haven’t gone on a long ride in a while, and perhaps are uncertain about group riding. Our L4 ride would be a good starting point. The rides are slower and shorter. The ride leaders are used to cyclists who are new or getting back into the sport. After a ride or 2, or 3, you’ll probably be comfortable to jump up to the L3. Given that you’ve done a metric century in the past , I suspect eventually you’ll move up again, once your on the road fitness and comfort improves.
Our newsletter has a levels guideline . It's based on speed on the flats, total ride miles and total elevation (ascent).
Thanks for asking
Just joined, and never ridden with this group before. I don't, for the life of me, have ANY idea how to level myself! :) Can someone help? I see L1 thru L4 listed, but try as I have, I can't seem to find a description of the levels anywhere. I joined as an L2, which is probably wrong. :) i did a metric century in Lake Tahoe with TNT in 2019. I'm a total novice. I have been indoor cycling for the past two years amid the pandemic, with an occasional outside bike ride to remind me how out of shape I am (for outside cycling).