OnGuard Secure Products

OnGuard bicycle, motorcycle, and powersports locks offer optimal security with the latest technological innovations, quality construction, and ease-of-use all at a great price. You'll enjoy all that the premium brands offer at a significant savings, giving you more for less. Great for commuters, students, and families, OnGuard delivers the meanest locks at the nicest price.

Onguard Mastiff 8022D Bike Chain Lock 80cm x 8mm

The OnGuard Mastiff 8022D is constructed around a compact 2.5' 8mm thick titanium reinforced hardened steel square link chain. The durable lock features Mastiff rotary lock with Deadbolt mechanism for added security and protection. Hexagonal and square links present more hardened surfaces than round links making sawing and cutting virtually impossible.

Titanium surface hardening vastly increase cut and saw resistance.Embroidered nylon chain covers wont crack or peel for long lasting beauty. Velcro tabs keep cover in place to help protect paint and finishes.


  • Chain dimensions: 80cm x 8mm.
  • OnGuard Security Rating: 57/100.
  • Deadbolt locking mechanism for highest break resistance.
  • Heavy duty stainless steel body with massive inner base for enhanced security.
  • 5 pin cylinder for extra pick resistance, and featuring the bumplok design.
  • Rotary style lock provides smooth, one handed operation.
  • Chain cover protects paint and finishes, embroided logo wont flake or wear off.
  • Includes 5 heavy duty F-Style keys.
  • Water and heat resistant embroidered chain cover with velcro closures.
  • Weight 4.8kg (inc keys).