This disclosure enables a vehicle, comprising: a cuff mountable on an elongated member such that the elongated member extends through the cuff; a first actuator attached to the cuff; a roller attached to the first actuator; a reshaper attached to the cuff, wherein the reshaper is a second actuator attached to the cuff or a spring attached to the cuff; and a power source attached to the cuff and configured to power the first actuator such that the first actuator drives the roller to move the cuff along the elongated member and the reshaper reshapes the cuff to generate a pressure towards the elongated member as the cuff moves along the elongated member.