OnGuard Bulldog Standard U-Lock

Item # OG-BDST
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OnGuard Bulldog Standard U-Lock
The OnGuard Bulldog Standard U-Lock provides superb peace of mind when it comes to securing your bike. This full-sized U-lock features all the protection features that makes OnGuard a stalwart bike security such as the Z-Key cylinder with its pick-, pull-, and drill-resistant design plus an ultra-hardened steel shackle that's 13mm in diameter. Five keys are included, including one with a micro-light for ease of use when the sun goes down.
  • U-lock's 13mm/0.51" ultra-hardened steel shackle provides maximum cut resistance
  • U-lock's double bolt locking mechanism provides added strength and high pull resistance by locking tight to 2 sides of the bar
  • Pick, pull, and drill resistant Z-Key cylinder with Bumpblok offers optimum deterrent against physical attack
  • U-lock features 5 laser-cut keys (1 micro-light and 4 extra grip keys)
  • Micro-light key projects a bright white beam for easy use after dark
  • Double rubber coating on U-lock crossbar
  • Quick release multi-position mounting bracket
OnGuard Bulldog Standard U-Lock
  • LENGTH U-lock dimensions: 4.53"x9.06"x0.51"
  • UPC 768661280109
  • MOUNT Quick release multi-position mounting bracket
  • Rating 4


by PowerReviews
OnGuard Bulldog Standard U-Lock

(based on 1 review)

Reviewed by 1 customer

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Fits its Purpose

By Em

from Washington, DC

About Me Casual/ Recreational

Verified Buyer


  • Durable


  • Heavy

Best Uses

  • Commuting/City

Comments about OnGuard Bulldog Standard U-Lock:

It's great for security in the city. It's not as versatile as a chain, but it still is very useful and portable. I'll use it throughout the city soon!

  • Cycling Style:
  • Comfort Oriented
  • Was this a gift?:
  • No

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OnGuard Bulldog Standard U-Lock

OnGuard Bulldog Standard U-Lock

Item No. »  OG-BDST

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