Heavy duty shackle thickness for high risk
This catalog identifies 17 professional-grade locks featuring a 16 mm shackle diameter. This specific thickness is a benchmark for resisting manual cutting tools and leverage attacks on high-value assets.
The selection includes hardware rated for motorcycles, electric scooters, and premium bicycles. These items prioritize material mass and structural integrity over lightweight portability.
Professional grade security components
The listings detail various configurations of 16 mm steel, ranging from standalone U-locks to integrated alarm systems.
- Stainless steel alarm U-locks for audible theft deterrence
- Sold Secure Gold approved 20CrMnTi steel shackles
- U-lock and 5 ft cable combinations for wheel protection
- Swiss-engineered locks with protective silicone outer coatings
- Kryptonite New York Standard heavy duty shackles
Application for electric and motorized transport
Due to the 16 mm thickness, these locks are frequently paired with electric bikes and scooters that require higher security ratings. Many units include mounting brackets to manage the significant weight of the hardened steel.
Review the specific brand entries for Kryptonite, Via Velo, and ONGUARD to compare shackle lengths and key replacement programs.