The Ultra 410 features a 12mm double-bolting temper hardened steel shackle providing protection against cutting and torsion attacks in a simple design. It includes an easy to mount rattle free bracket and comes in a variety sizes and packages.12mm thick round temper hardened steel shackle Pass through double bolting steel shackle provides anti-twist protection Easy to use mounting bracket fits most frames Patented double layer key design reduces breakage Security Rating: 8 of 15
