Abstract: A bicycle parking rack that encloses and secures a bicycle left crankarm (40) within a chamber (12), prevents its removal from the bicycle and provides for multiple locking mechanisms within protective, stainless-steel plating. The baseplate (10) is affixed to a permanent vertical or horizontal surface by welding or non-removable fasteners. The chamber rises to a height just above the bicycle bottom bracket shell (52). A door (16) on the chamber allows entry of the crankarm. A padlock, cylinder lock, or both, are placed inside the chamber. They lock an upper hasp plate (34a), welded to the chamber, to a lower hasp plate (34b), welded to the door. A U-lock is used by inserting it through the left side of door and chamber. The upper U-lock shackle leg (46a) is inserted through the U-lock upper door hole (28a) and U-lock upper chamber hole (28b). The lower U-lock shackle leg (46b) is inserted through the U-lock lower chamber hole (30a) and U-lock lower baffle hole (30b).