Abstract: A cover for protecting a drivetrain system, which is used when a bicycle is stowed in a carrying bag, is disclosed. The chain bag is a rectangular bag with two hanging belts. The hanging belts are separately disposed with velcro fasteners for hanging on a frame or rack of a bicycle.

Abstract: The bicycle carrying bag includes a main bag and a shoulder strap. The main bag is composed of a bag sheet and a soft pad top-dressed on the bag sheet. Edges of the bag sheet are disposed with a first zipper and a second zipper to make the bag sheet form a bag body. Two blanks are remained between the two zippers and are disposed with a pair of Velcro patches. The shoulder strap includes a belt and two belt connectors. Each the belt connector is composed of a first member and a second member. The first member is located at an end of the belt. A loop is formed when the first and second members are engaged for looping up a frame and wheel of a bicycle. The shoulder strap may pass through the pair of Velcro patches.

Abstract: The present invention is to provide a system of storing data of one of a variety of memory cards in a portable storage device, wherein a storage media installed in the storage device can be implemented as an ordinary hard disk with a high memory capacity for storing data transferred from a memory card and uploading the data into an electronic device if needed, and be designed in a small size having a built-in power supply for easily being carried by a user while travelling.