It's a group that fundraises together. Doesn't necessarily ride together. For instance, I rode on limited brands peloton last year, in a sub peloton for mast global (one of the limited brands companies).
I thought about riding just to say I rode in the coldest temps we've seen in twenty years. Instead I made myself a cup of coffee, ate some grilled cheese and soup, and am currently sitting in my recliner next to the fireplace.