This is very probably the toughest d lock money can buy principally designed for use on motorcycles the abus granit extreme 59 lock is suitable for any high risk application a 16mm square section parabolic shackle is double bolted into the twin powercells of the armoured hardened steel body providing colossal pulling resistance the latest generation x plus key mechanism offers 1 million key variations to shrug off any attempts at picking 260mm long please note this lock does not includ