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
• Advertised Weight: 2.1
• Diameter: 12
• Shackle Width: 3.9
• Lock Style: Keyed
• Cable Included: No
• Length: 9