1.[Capacity and Dimensions]Our bike rear rack's weight capacity is 110 lbs/50 kg maximum. Shelf size: 22'(length) 5.7'(width). Panel size: 14'(length) 6'(width). It is available for most mikes whose seat post's diameter should be between 0.85' to 1.3', and there is no shock absorbed. 2.[High ]Our bike cargo rack is made of high quality aluminum alloy which is strong and durable. The material is welded by heat treatment, so it becomes light and heavy duty. In addition, the smooth surface is coated with anti rust coating, so that you don't have to worry about rust even in rainy and wet days. 3.[Innovative design]The length of the bicycle luggage rack can be adjusted according to your needs, so you can put some longer objects. The bike rear is fit for V-brake and Disc brake bike, such as mountain bike, fat bike, road bike. With this bicycle rear rack frame, whether you are going to sports or outing, you can fix your bags or other things on the bicycle very well , then you can travel without any worry. This bike rear rack only weighs 2.4 lbs ( 1.1 kg ), so it won't affect your ride. 4.[Convenient and Safety]It is easy to install and cooperate with hexagon screw driver. Simple operation, you can quickly install the rack. At the same time, there is a red rear reflector lamp at the tail, which can ensure your riding at night. At the same time, it is equipped with elastic cords to ensure the of your luggage.