A bar-end device assembly is provided for a tube member of a bicycle. The bar-end device assembly has a base member that includes a mounting portion, a first shoe and a second shoe. The mounting portion is configured to be mounted within an interior of a free end provided on the tube member. The first shoe is configured to engage the interior of the tube member as the mounting portion is mounted to the tube member with the first mounting shoe disposed on the mounting portion. The second shoe is configured to engage the interior of the tube member as the mounting portion is mounted to the tube member with the second mounting shoe disposed on the mounting portion. The first and second shoes have different configurations and are used one at a time to change an effective mounting dimension of the base member.