Material: The bicycle rear frame is made of aluminum alloy material, durable and wear-resistant, not easy to rust; The 2.43-pound bike rear frame can carry up to 220 pounds of cargo Load-bearing: With support up to 110 pounds, perfect for carrying suitcases, backpacks, and baskets, you can carry a lot with you, and it can effectively support your cargo. Versatile: BRMYHCZ bike basket frames are suitable for disc brake bikes, (V-type brakes are also available) for 24 "26" 28 "bikes, extension screws to accommodate different diameter bike holes, including those with disc and non-disc brake systems Easy to install: Just make sure all the screws are in place and adjusted when installing, then tighten to prevent the screws/holes from falling out, and you have a perfect bike rear frame Three-point design: The bike rack features three long aluminum support rods for better support and more uniform force, providing better load-bearing capacity, allowing you to carry more weight, while also protecting your bag from being ripped by wheels or spokes