Walmeck Bike Lock Heavy Duty U Lock Secure Lock with Mounting Bracket

your bike from various methods of thief effectively. Good resistant to cutting,breaking,sawing and shearing. Made of hard alloy steel,it is not easy to be cut and leverage attacks. Silicone outer cover prevents corrosion of water,dust and dirt. Mounting bracket can be easily fixed on bike tube(Max.29mm/1.1in) when you do not need.