When riding a bicycle, how should you transport your belongings? A backpack makes you sweat and hurts your back. Rear and front carriers makes your bike difficult to ride and park. The CSSB system developed by TATO in Switzerland, which is integrated into the structure of the bike frame, does not have these inconveniences. The rider is freed from any weight on his or her body. No need to use accessories to secure items, they are simply inserted from the top and do not require any attachment. They are closer to the center of the bicycle and to the ground, making the ride safer.