This disclosure is directed to bicycle storage systems and, in particular, to shared-use bicycle systems. Several embodiments herein are directed to a shared-use bicycle system, comprising a bicycle having a locking device and an accessory-receiving area. The locking device can extend horizontally from the bicycle, and the accessory-receiving area being positioned below the locking device. The shared-use bicycle system also comprises a bicycle rack having a horizontally-extending rigid member with at least one opening thereon to receive the locking device of the bicycle in a secured manner. When the bicycle is received in the at least one opening of the bicycle rack in the secured manner, access to the accessory-receiving area of the bicycle is restricted by the horizontally-extending rigid member.