The Abus Granit X-Plus 54 offers maximum theft protection for high-quality two-wheelers. The patented square parabolic shackle and the X-Plus cylinder offer optimum protection against manipulation attempts of all kinds and make the X-Plus 54 the strongest shackle lock from Abus. U-locks are one of the classics in securing bicycles and not without reason. Solid material and no moving parts outside the closing mechanism offer an excellent starting position for the hardest resistance. Test aktiv Radfahren, issue 4/2012: "High security level. The wide range of connection options and the large handle make the Abus GranitX-Plus 54 the test winner"!