Bushwick Restaurant Week co-founder Nick Gilbert showed the tread on his shoes. That is to say the severe lack of tread, “These were new when we came up with the idea for this thing.” Since mid-March, he and his business partner Bob Murray have walked all over Bushwick, East Williamsburg and Ridgewood to cultivate a roster of restaurants, bars and cafés to make up the weeklong event. They are finally ready to release a list of participants entailing the fruits of their efforts.