Don't even think about itthis is one Bulldog of a lock! Lock uses the legendary MCylindertm mechanism for theft deterrence. Antidrill and pickproof guts make this a supersecure package. Dual Steel Bartm locking mechanism delivers up to 10 tons of pull strength. Features a new 13mm 12' massive hardenedsteel shackle for strength. Ballistic plastic holds up to the most aggressive trashing and thrashing. Lock is tough but gentle on your bike's finish plastic, rubbe