Abstract: A method of operating a vehicle is described, in which the vehicle includes a frame structure carrying a ground engaging structure whereby the vehicle may travel over the ground, the ground engaging structure including a pair of steerable wheels which with the vehicle travelling in a travelling direction, are front wheels, and a pair of rear wheels which may each independently be braked by the operation of respective brake devices, the vehicle further including a controller which is capable of providing signals independently to the brake devices of the rear wheels to effect application and release of a selected brake, and the method including sensing the vehicle travelling speed and providing a first input to the controller, sensing steering of the vehicle by the operator and providing a second input to the controller, and where the travelling speed is below a threshold speed, and depending on the direction of steering of the vehicle, the controller applying one of the brakes.