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 Bulldog 8013 Shackle Mini D U Bike Lock

The OnGuard Bulldog Mini U-Lock is designed for those who travel light and fast but require the extra security of a X2P Double Bolt lock. Constructed with a 14mm square shackle which provides maximum cut resistance. The lock is securely held in place by the double bolt locking mechanism, which gives added strength and high pull resistance by locking tight to 2 sides of the bar. The simple to use quick release multi-position mounting bracket enables you to attach the lock on to your bike within in a matter of seconds, once the bracket is fitted.

The lock comes equipped with 5 laser cut key's (1 micro-light and 4 extra grip keys), the micro-light key protects a bright white beam for extra safety.


  • Massive 13mm ultra hardened steel shackle which provides maximum cut resistance.
  • 90mm x 140mm x 13mm hardened steel shackle.
  • Onguard security rating of 65/100.
  • Double bolt locking mechanism locks tight to 2 sides of the bar.
  • 13mm hardened steel shackles are impervious to prying, jacking or cutting.
  • Round profile and smooth edges eliminate leverage points.
  • Quick release multi-position mounting bracket.
  • Ultra-hardened reinforced crossbar.
  • Anti-rattle bumpers.
  • Rubber coated protection.
  • 5 Laser cut keys, 1 with LED Microlight and 4 extra grip keys.
  • Weight (approx): 960g (inc brackets and cable).