If you enjoy getting out for a run, or you want an all terrain stroller, you"ll need the CTS Jogging Kit to turn your compatible Chariot bike trailer into a performance jogging stroller. Just attach the arms to your carriers VersaWings and you are off. Please note that each Chariot is designed to work with a specific Jogging Kit, so be sure to choose the right kit for your carrier. This one is designed for the Corsaire 1 bike trailer model.