Abstract: A hinged cord locking device is adapted to be clamped onto the support bar of an article to be locked such as one of the frame bars of a bicycle. The cord may be withdrawn from a spring retractable reel, wrapped around a stationary object and the locking bolt on free end of the cord locked in a locking channel in the hinged body portion of the device to thereby affix the article to the object. The hinged body portions rotatably support the two piece cable reel which is positively interlocked with the body portions to prevent removal thereof from the support bar. The locking channel is defined by the two body portions such that insertion of the locking bolt into the channel locks the cord to the body portions, the hinged body portions together and the cable reel to the body portions. When so locked, the locking device cannot be removed by opening or sliding axially off a support bar.