The KM820 Rixen & Kaul Freepack Adapter Plate is an innovative accessory designed to convert your backpack into a practical and comfortable bicycle bag. With this adapter plate, you can easily attach your backpack to your bicycle and enjoy hands-free cycling, without sacrificing your comfort or style. The adapter plate is made from high-quality materials, including a sturdy plastic frame and adjustable straps that allow you to securely attach your backpack to your bicycle. The plate is designed to fit most standard backpacks and can be adjusted to fit different sizes and shapes.