Abstract: A cable ski binding comprised of a toe iron having a boot sole support and boot toe lateral movement side restraint surfaces, a toe bail for clamping the top surface of the toe end of the sole extending out from the toe end of the boot to the sole support plate, a cable for securing the boot between the said lateral side restraints and under the said toe bail, a dual purpose heel assembly having a heel lever for securing the cable to the heel of the boot and a rocker means with two opposing elongate members, one of which acts against a spring and the other having a near horizontal surface aspect and attached to the rear most end of the cable loop. Sufficient stress on the cable causes the rocker to rotate and thus allows for the effective lengthening of the cable relative to the length of the boot while being continuously opposed by an increasing torque applied to the rocker by the spring through the moment arm of the former elongate member.