Product Information ROCKBROS is an original brand founded by cycling enthusiasts. The goal of ROCKBROS is to offer high - quality products at an affordable price to every customer who loves cycling and outdoor sports. ROCKBROS Bicycle Luggage Rack with Quick - Release Clamp, Aluminum Specification Brand: ROCKBROS Series: HJ1008 - 1 Color: Black Weight: Approximately 1.2 Kg Material: Aluminum Alloy It is easy to install and uninstall. Equipped with a mudguard and a reflector. Adjustable side supports. Actual load - bearing capacity: 75KG. Since the testing agency currently only offers 25KG - load tests, we have changed the label. Comes with side protection frames and ropes. Attention: This luggage rack is suitable for seat post diameters under 32mm. Adjustable Mounting The mounting brackets are adjustable from 25 - 37cm. Thus, the luggage rack can be easily adjusted to fit your bicycle. Mudguard The 30 - degree adjustable mudguard under the seat provides more protection in rainy weather and keeps your bike clean. Reflector The reflector enhances the safety of cycling at night and in dark situations. Side Frames With side protection frames and elastic ropes, you can fasten and transport suitcases, backpacks, and baskets on the luggage rack. Also, they prevent your luggage from being scratched by the wheels or spokes. Rope Use the rope for fastening. Package Includes Rack * 1 Support * 2 Side protection frames * 2 Mudguard * 1 Reflector * 1 Screws, spacers Installation Fasten the luggage rack with gaskets to the seat post. Loosen the 2 silver screws under the luggage rack. Loosen and tighten the 2 black screws to install the rear mudguard. Install the 2 side stands into the second hole. Loosen the screws and fasten the 2 side supports. Install the 2 side frames. Install the rear light.