Who it's for

  • Cyclists needing reliable security for their frame and quick-release wheels
  • Budget-conscious riders seeking dependable protection without overspending
  • Commuters and casual riders who value hassle-free lock transportation

Who should skip it

  • Lightweight bike enthusiasts and riders prioritizing minimal carry weight
  • Riders needing to secure bikes to unusually thick posts or multiple bikes
  • Owners of high-value components who require maximum security for all parts

Performance breakdown

Locking Security

Double bolt technology provides reliable resistance against common prying and twisting attacks.

Excellent

Versatility

The extra-wide shackle and included cable make securing to awkward posts easy.

Excellent

Portability

At over three pounds, it adds noticeable weight to your daily commute.

Good

Ease of Mounting

Included bracket simplifies frame attachment, though fit varies by bike geometry.

Good

Cable Utility

Four-foot length offers enough reach to secure wheels alongside the frame.

Excellent

Build Robustness

Thick 13mm shackle feels substantial and inspires confidence in high-theft areas.

Excellent

Key Specs

Lock Type

Key Lock, Cable Lock, U-Lock

Shackle Dimensions

115mm x 230mm (4.5" x 9")

Shackle Diameter

13mm (0.51")

Cable Dimensions

120cm x 10mm (4' x 0.39")

Locking Mechanism

X2P Double Bolt Locking Technology

Weight

Approximately 3.3 lbs (Lock, Cable, and Bracket)

Know before you buy

Still have a question?

Ask Metto anything about the OnGuard 8012 Bulldog U-Lock before you decide.

OnGuard 8012 Bulldog U-Lock

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