[Sturdy&Solid]This rear bike carrier rack is made of with high strength aluminum alloy material,strong and well built bike rack for back of bike for carrying lots of weight and keeping panniers sturdy..[Large Load]Adjustable alloy bicycle carrier upgrade loading system can carry 110 lbs to 165 lbs, for carring some stuff on your trip,work commute,even carry the people..[W-Shaped & Adjustable Design]Design with W-shaped bars to prevent pannier from hitting the tires,keeps your pannier .The adjustable shelf and bottom rods,fits 18"-27.5" mountain bike type and road bike type..[Simple Installation]Our adjustable bike luggage cargo rack can be attached to the seat tube by simply fastening the screw. All part of the bike rack carrier for panniers are well organized in different part. Simply attach the part to the bike without asking for holes. Any one can install the bike rack without others help..[Includes Red Rear Reflector Lamp ]Bicycle Carrier Rack comes with red rear reflector lamp for fixing light to add more when riding at night. Easy assembly required with assemble tools included.Design with aluminum alloy and quick release. Fits V-brake and Disc brake bike; For fat bike, road bike, mountain bike,etc. (' bike can not be used)