Master Lock Criterion High Security Chain With Mini D Lock Hardened Steel Sold Secure Gold

What are the delivery costs?

We offer Free UK Mainland Delivery on all orders over £20. Products shipped to outlying UK regions are excluded from free shipping.

Standard delivery is normally 2 - 5 working days.

Please view our delivery page for full information on UK and international delivery costs.

Master Lock High Security locks are dedicated to all cycling enthusiasts in guaranteeing the highest level of protection against theft. Their entire development has been designed to provide the best resistance to all possible levels of aggression.
Chain :
  • Hardened steel chain with square links 1m x 10mm for a better cutting resistance
  • Integrated grips make using this product even easier
  • Black nylon cover prevents from scratches
Mini U-Bar :
  • Unique Octagonal Shackle 16mm for better resistance against cutting
  • Special treated steel shackle for a better resistance against bolt cutter
  • Dual locking shackle for better tensile resistance
  • Disc Security Cylinder for a high resistance against picking
  • Anti-dust keyway protection


Occasionally, without notice, manufacturers change product design and/or specifications.