Patent-pending hardened double-deadbolt design delivers additional protection against twist attacks High-security disc-style cylinder is pick- and drill-resistant 12.7 mm hardened performance steel shackle Includes a FlexFrame-U bracket that attaches to...

  Kryptonite Keeper 712 Combo Integrated Chain Lock Kryptonite security levels: 1 (Low) - 10 (High) End link locking point for extensive holding power 4 sided 3t manganese steel chain...

THE MOST HEAVY DUTY CHAIN LOCK ON THE MARKET Kryptonite New York Fahgettaboudit Chain Key Lock 1410  3.5 foot x 14 mm link NY-DISC Comes with $5000 protection guarantee   Kryptonite...

Kryptonite security levels: 1 (Low) - 10 (High) 3mm hardened steel links for moderate security lock ups Includes easy to install transport bracket Easy to use dials with highly visible...

Kryptonite security levels: 1 (Low) - 10 (High) 16mm hardened Max-Performance steel shackle Patent-pending hardened double deadbolt design gives additional protection against twist and cut attacks Highest security disc style...