Well, I can't say I have much of a cycling social circle.
One of my best friends races with a team, and I love her to pieces, and we don't ride together (we live in different towns now, and I know I am not at her level, anyhow).
The folks I occasionally ride with locally are IM triathletes (hence the "occasionally"). I can't really keep up. Nice bunch of folks, though.
There is a group that rides in a town about 45 minutes away that I keep telling myself I need to go ride with. Sometime soon I will do that, and we will see who they are and what they're like!
Mostly I ride alone, but I need to change that.
"The best rides are the ones where you bite off much more than you can chew, and live through it." ~ Doug Bradbury