Abstract: A system, generally for use with light personal vehicles such as bicycles or e-bikes, for enabling a vehicle trailer and a tow bar to be interconnected in either a braking configuration or a non-braking configuration, is described. Also described is a braking kit for interconnecting a tow bar and a vehicle trailer in a braking configuration, wherein the vehicle trailer comprises a connection interface dimensioned to be connected with an end of the tow bar in a non-braking configuration. When the tow bar and the trailer are interconnected in the braking configuration, at least a threshold amount of rearward force imparted via the tow bar during vehicle braking causes the actuation of at least one brake associated with the trailer wheels. The same tow bar can be used in either braking or non-braking configuration.

Abstract: A bicycle convertible from a bicycle mode to a stroller mode comprises a frame having a front portion supporting a carrier and a rear portion. A front wheel supports the front portion of the frame, and a rear wheel supporting the rear portion of the frame in the bicycle mode. The rear portion of the frame is hinged to the front portion of the frame such that to convert the bicycle from the bicycle mode to the stroller mode the rear portion of the frame can be moved alongside the front portion of the frame to position the rear wheel to support a one side of the rear portion of the carrier. An auxiliary wheel, movable between a raised position raised from a riding surface in the bicycle mode can be moved to a lowered position contacting the riding surface in the stroller mode to supports the other side of the carrier.