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Wheel-Retention Device
A device which keeps the front wheel of a bicycle from coming out of the fork if the axle nuts or quick release is loose. With axle nuts, the retention device is usually a washer under each axle nut, with a tab at one side that runs parallel to the axle and fits into a hole in the forkend. With a quick release, there have been three common types of retention device: the so-called "lawyer lips" on the forkend; tabbed washers like those used with axle nuts; or a pair of clips that pivot around special hub locknuts and attache to a peg on each fork blade. Only the clip type, invented by Schwinn engineer Frank Brilando and only used on Schwinn bicycles, prevents the wheel from coming off it the quick-release skewer breaks, and holds it securely enough that it can not wobble.
