The sold secure gold rated granit x plus 540 replaces the legendary x plus 54 with a more stylish look while retaining its safety features the parabolic 13mm square section shackle is massively resistant to cropping and twisting it is securely held in place by the powercell double locking mechanism that offers the highest protection against hitting and pulling attacks the x plus locking system with automatic keyhole cover allows ease of use while offering protection against dirt corrosion an