Abstract: A trailer motor carriage configuration that is easily detachable from a bicycle or multi-wheel vehicle. A maneuvering mechanism attaches the carriage to the rear of the vehicle. The mechanism prevents interference of the carriage with the vehicle while maneuvering around corners and on uneven surfaces. The configuration is constructed to support a heavy payload under adverse conditions. It has an axle and two wheels rotatably mounted thereon. A motor mounted on the carriage produces rotational energy, and a clutch and throttle transmit rotational energy to the wheels. So equipped, either the vehicle or carriage can propel the other.