OUTERDO Bike Carrier Rack Bicycle Mount Racks Cycling Cargo Racks Black Alloy Seatpost Rear Pannier Luggage Carrier Aluminum Stand Bike Shelf Quick Release Height Adjustable COMPATIBILITY - Suitable for 15 '' to 20 'MTB Mountainbike' can also be used for 26, 27.5, 29 bicycle routes. Fit almost all bicycles, road, mountain, posts, etc. USE FRIENDLY DESIGN - The total weight amounts to only 1,200 grams. Suitable for V-brake and disc brake bike. Lower bracket can be adjusted. Has Both sides baffle your friends can wear. 110 lbs MAX EXPOSURE - High quality aluminum alloy frame. Strong and durable. Suggest 25 kg if only the main bar. Support 50kg / 110lb Max load. SECURITY - Comes with red rear reflector lamp and elastic cords to keep your luggage safe and make safe at night to drive. With sides protect frame, make your luggage through the wheel spokes or scratched. SIZE - 13.7 x 5.5 inches, movable and fixed rack, ideally used with suitcases, backpacks, baskets, so that you have enough to wear for a day trip. NOTICE: You can search "OUTERDO Mount Racks" on Youtube to see the installation video.