The Topeak QR Beam Rack MTX with Side Frames and Reflector is a sturdy and versatile carrier rack designed for rear positioning on bicycles. Made from durable aluminium, this rack has a capacity of up to 20lb / 9kg and is compatible with various wheel sizes including 26.5 inches and 29 inches. The sleek black design adds a stylish touch to your bike, while the included side frames provide additional stability for loaded panniers. With a length of 40 cm and a width of 15 cm, this beam rack is a practical and reliable choice for cyclists looking to transport gear on long rides.