Two kettwiesel trike that may be joined as tandem and experience couple ride or ride one by one as regular delta trike. One trike is black and one is red and both has Schlumpf speed drive. It has no differential but I find ride between kett with differential and without to be same. If truth be told I like steel version kettwiesel such a lot that I intend to keep one. But when someone in point of fact need as tandem then I let it go. Will ship and share the associated fee. Or I will be able to deliver within 300 miles if u pay just the gas.