Orientation sensor

There is discussed an orientation sensor having a first mounting means for mounting the orientation sensor to an object, a second mounting means mounting a member to the first mounting means; and two or more accelerometers provided on said member. The second mounting means is an anti-vibration mount operable to attenuate vibrational movement travelling from the object to the member. In this way, the two accelerometers provide readings which can be used to determine the orientation of the object. One application for the orientation sensor is to determine the orientation of a motorcycle as it corners.