The Howard adapter only fits some of the coaster brake hubs. I'm running it on my 2011 Huffy Cranbrook. I THINK I'm finally finished building after almost a year. I turned it into a motorcycle with a 12v system for a headlight, tail light, turn signals, horn. ammo cases for side cases, windscreen, speed carb and boost bottle. Even with all the weight I clocked it at 35mph. Now, on to the next project.