[TheThinkTank] Bike Coalitions?

Is anyone part of a bike coalition in their city? Either a coalition of bike groups or a coalition of social justice groups in which you're the bike folks? I'm about to have the first tentative meeting of an NYC Bike Coalition and would love some perspective from people about what's working and what's not, and any "if I had known, I'd have had us do this thing at the get-go" advice. My goal for this is to have bike groups work with each other and with non-bike groups to develop a shared understanding of institutional discrimination and co-create plans to combat it.