About This Item: [EASY TO INSTALL AND DISASSEMBLE]: The bicycle rear frame is easy to install and disassemble, suitable for mountain bikes, electric bikes, folding bikes, road bikes, etc. [LIGHTWEIGHT AND CONVENIENT]: Portable and light, easy to assemble, compressive, and long-distance resistant. Black surface, cool appearance, suitable for all bicycles. [MULTIFUNCTIONAL DESIGN]: Elastic rope helps ensure the safety of luggage. Aluminum alloy material, lightweight, corrosion resistance, high hardness. [BICYCLE REAR RACK]: Capacity (load): 10kg/22lbs. Seat size: 23*14.5cm//9*5.7" (length x width). [PACKAGE INCLUDES]: Including all necessary nuts, bolts, and washers. The length can be adjusted by screws to meet your needs. .