FIROS 4ft Heavy Duty Motorcycle Chain Lock with 16mm U Lock - Anti-Theft Bike Lock for Motorcycles, Bicycles, Scooters, Generators & Gates - Perfect for Outdoor Security, Parking Protection & Travel Safety

High Security Heat Treatment Hardening Heavy Duty Motorcycle Chain Lock Our bike chain lock itself features 0.39in/10mm links for extra protection against bolt cutters. Each link is made from heat-treated manganese steel with a narrow internal diameter to prevent leverage attacks. The motorcycle locks heavy duty anti theft will provide you higher safety for your valuable bikes or goods! The mini u lock included with this motorcycle chain lock is a 0.63in/ 16mm steel shackle with a small internal hoop diameter which means that once both ends of the heavy duty security chain lock are secured, it would be very difficult to get enough leverage on the padlock to cut through it. Wide Application The total length of this heavy duty anti theft motorcycle locks chain is 3.87FT, and the weight of it is 5.11 lbs. It can be used in different applications, such us motorcycles, electric bikes, doors, grills, ladders, sports equipment, tool boxes and so on. Comes with a high quality mini disc lock, you will never worry about blocking. Mini U Lock Made of high quality carbon structural steel, and both the lock lever and lock body have been handle by heating and hardening which makes the 0.64inch shackle can resist cutting and leverage attacks. The lock cylinder of mini disc lock is made by zinc alloy blade, which has a precise structure to prevent technical opening. The heavy duty motorcycle chain lock comes with a sliding dust-cover, the mini u lock can resist corrosion from water, dust and dirt to prolong the life of your anti theft motorcycle lock. Don't worry about blocking when opening the disc lock. 10mm Heavy Duty six-sided Manganese Links! The bike chain lock itself features 10mm/0.39inch six-sided links which are made of heat-treated manganese steel, and the links will not be too brittle. The thick links can provide your motorcycle, bike or other valuable things with extra protection against bolt cutters. 3 Keys! The motorcycle locks heavy duty anti theft comes with 3 keys, so you'll always have a spare one. The keys are made of copper that you don't need to worry about blocking when opening the mini u lock. And the 3 keys are specially designed which are difficult to copy. Protective Sheath! The motorcycle chain lock is covered with scratch-proof and wear-resistant flexible sleeve cloth which adds another dimension of protection against cutting. At the same time, it will provide additional protection of delicate painted surfaces on your motorcycles or bikes. Note 1. Please keep the lock cylinder clean and dry in daily use. 2. If the lock is difficult to open due to deposits or prolonged non-use, some pencil lead powder can be added to solve this problem. 3. Never leave your bike unattended in remote places or for a long time.