Abstract: An apparatus for fixing a bicycle disk brake rotor a bicycle wheel hub comprises an adapter and a rotor retaining member. The adapter is structured to be nonrotatably coupled to the bicycle wheel hub and to nonrotatably support a disk brake rotor. The adapter includes at least one insertion opening. The rotor retaining member has a latching member structured to be inserted into the insertion opening in the adapter to retain the disk brake rotor to the adapter.

Abstract: A hermetic motor protector (10) has a non-current carrying snap-acting thermostatic disc (26) freely disposed on a disc seat (22a) having a tab (22c) projecting through a centrally located aperture (26a) in the disc. An outer peripheral portion of the disc is received under a leg (22e) of the bracket limiting upward motion of the disc at that location and causing the disc to act as a lever pivoting about the disc seat (22a) as a fulcrum so that the outer peripheral portion of the disc diametrically opposite to leg (22e) engages a motion transfer bump (28d) formed on a movable contact arm cantilever mounted on leg (22e) when the disc snaps from its normally contacts engaged configuration to its opposite dished contacts open configuration when the disc is heated to its actuation temperature by a heater element (24) along with heat conducted from a motor with which the protector is used.