A gyroscopic stabiliser for stabilising motion of an object, the gyroscopic stabiliser comprising: a support for attaching to the object whose motion is to be stabilised; a gimbal rotatably supported by the support to be rotatable around a first axis relative to the support; and a flywheel rotatably supported by the gimbal to be rotatable around a second axis relative to the gimbal, the second axis being orthogonal to the first axis; wherein the gimbal is rotatably supported by the support at least partly within a maximum width of the gimbal along the first axis; and a maximum width of the gyroscopic stabiliser along the first axis is equal to, or substantially equal to, the maximum width of the gimbal along the first axis.