i think the reason you dont see many harley sidecars is , well they stopped making them and when they did. buying 1 was almost as much as a new Ural. the trikes and can ams are around the same money as a ultra or goldwing. a little more but in the same neighborhood. while a new gear-up is the same money as a dyna-glide. With buying a aftermarket side car your painting it and having it installed. It's labor intensive for people who would rather turn a key then turn a wrench.