Description Take care of and keep your motorcycle safe with this 97 security U-lock with X4P Quattro Bolt technology that secures the shackle on all four sides for greater protection. Measurements 55mm x 55mm: the opening fits into the large holes in the disc and rotor. 16.8mm Massive (0.66”’) hardened steel shackle resists any attack from cutting, such as leverage or pressure. It is ideal for motorcycles or scooters. Includes: 4 keys + 1 key with micro light (projects a bright white light). The best quality and guarantee from the Onguard brand, experts in padlocks. Description Take care of and keep your motorcycle safe with this 97 security U-lock with X4P Quattro Bolt technology that secures the shackle on all four sides for greater protection. Measurements 55mm x 55mm: the opening fits into the large holes in the disc and rotor. 16.8mm Massive (0.66”’) hardened steel shackle resists any attack from cutting, such as leverage or pressure. It is ideal for