Scooters, Ebikes, Motorcycles, And Mtbs Can All Benefit From The High Security ?Heavy Duty Durable Material??Bike chain lock is made of 5mm high strength alloy steel, strong and high toughness prevents from being sheared by the 12T hydraulic cutter, thumped, sawed, drilled, providing maximum security against theft. The outer layer of the chain is wrapped with fully closed environmentally friendly high quality soft plastic rubber to prevent rust and coating of the scraper. ?Switzerland Technology Lock Cylinder?: RBRL heavy duty bike lock adopts swiss lock cylinder technology. The cylinder tooth pattern is complex and diverse, only 0.3-0.6mm snake shaped, which effectively prevents the opening of universal key, sheet metal foil and special unlocking tool. ?Easy Installation Easy to Carrey??The folding lock allows you to mount the bracket with screws to the already existing holes of the bottle holder on your bike, or install it anywhere with mounting straps. Folding lock bicycle after fixation, the bike no longer creaks even on bumpy roads. And 8 folding bars greatly reduces the lock size and offers flexibility in a compact design, making it more convenient to carry around. ?Special Rivet Protection??Our smartly designed rivet protection makes RBRL bike chain lock ultimate security, preventing several types of potential attacks. Its pivot motion helps the links rotate smoothly around the axis, easy to fold and unfold. It also ensures a relatively slient riding. ?Multi-purpose?: RBRL folding bike lock is 110cm long, can be used for bicycles, electric bikes, scooters and motorcycles. This alloy structure steel bike lock is also perfect for locking up items around the house, the garage, the construction site or the farm, like generator, gates fences, grills lawnmowers, sports equipment, tool boxes ladders, stroller and many more.