Compatible with a wide range of sizes up to 20 inches. The zipper opens 180 degrees for easy storage. ■ Features of the 20-inch Storage Bag Protects your precious bicycle from scratches and dust. A convenient storage bag for carrying your bicycle. Can be stored compactly in a storage bag when not in use. Excellent finish with a simple design. Used once and then stored. We are looking forward to your purchase if you understand that this is a used item.