Onguard 

OnGuard locks deliver top-tier security with double and quad-locking mechanisms, bump-resistant cylinders, and hardened steel shackles and chains. Designed for both protection and durability, they feature full coatings to prevent scratches and shield internal components from the elements, while their bright colors act as a visual deterrent. Every lock comes with premium extras, including all-tube mounting brackets, five laser-cut keys, key-code registration, comprehensive anti-theft programs, and a limited lifetime warranty. For maximum security and flexibility, OnGuard chain locks provide extra length, ensuring superior protection for bicycles and powersport vehicles.