A stability attachment for a personal transportation vehicle includes a frame, a clamp mechanism and a pair of training wheels. The frame includes a first support arm and a second support arm. The first and second support arms are interconnected by the clamp mechanism. Each of the training wheels is situated on opposite sides of the frame and vertically adjustable thereon. The frame is selectively mounted to the main body of the personal transportation vehicle on which the operator stands by the clamp mechanism. The clamp mechanism is adjustable so that the stability attachment can be mounted to personal transportation vehicles of various sizes. Each of the support arms includes at least two telescoping members so that the overall length of the support arm can be adjusted.