The 560G from Altor Locks is a bike lock that provides just as much security as a standard U-shaped lock, but when riders feel it they might not think so. That's because Altor Locks' 560G weighs in at just over one pound -- 1.2 pounds or 560 grams, hence the name.
The 560G combines extreme strength with reduced weight thanks to a combination of materials and an interesting design. The lock is built from a blend of solid grade-5 titanium, which offers a significant weight improvement over the more common steel and titanium blends on the market. Then, the 560G employs a unique, hinged design that gives the lock a range equal to or greater than far bigger locks without having to add more material.