of speak-of speak-imp. of speak.-the radius or ray of a wheel; one of the small bars which are inserted in the hub, or nave, and which serve to support the rim or felly.-a projecting handle of a steering wheel.-a rung, or round, of a ladder.-a contrivance for fastening the wheel of a vehicle, to prevent it from turning in going down a hill.-to furnish with spokes, as a wheel.