For our TNT rides, they are not allowed. We do have riders with aerobars (clip on) on their bikes, and I'm not going to make anyone take them off, but they don't use them when riding with the group. Simple.

If you had a "tri/TT bike" that only had an aero bar set up, it wouldn't be allowed on our team rides. Sorry.

On rides I do on my own, I will paceline with riders I know and have confidence in who have aerobars. There's an advantage there, especially for the longer rides.