REI.com
  • Online: www.REI.com
  • URL for this product:
  • From the U.S. and CanadaCall 1-800-426-4840
  • Mon. through Sun., 4 a.m. through 11 p.m. PT.
  • InternationalCall 1-253-891-2500
  • Mon. through Sun., 4 a.m. through 11 p.m. PT. English language only.
OnGuard Bulldog Mini TC U-Lock
zoomZoom image

OnGuard Bulldog Mini TC U-Lock

Item # 751293

$36.00

Item qualifies for annual
REI Member Refund (typically 10%)

1.

2. Qty

3.

Product Rating
Share It
Bookmark and share Bookmark and share

The OnGuard Bulldog Mini is tough yet weighs under 2 pounds.

  • Lock uses the legendary M-Cylinder™ mechanism for theft deterrence
  • Anti-drill and pick-proof guts make this a super-secure package
  • Dual Steel Bar™ locking mechanism delivers up to 10 tons of pull strength
  • Features a massive 13mm (1/2 inch) hardened-steel shackle for strength
  • Ballistic plastic holds up to the most aggressive trashing and thrashing
  • Lock is tough but gentle on your bike's finish; plastic, rubber or vinyl is used where lock might contact bike

Imported.

Item 751293

OnGuard Bulldog Mini TC U-Lock Specs

Specification

Description

Average weight1 lb. 11 oz.
MaterialHardened steel
Dimensions3.5 x 5.5 inches
Integrated lockYes

OnGuard Bulldog Mini TC U-Lock Customer Reviews

REVIEW SNAPSHOT®

by PowerReviews
OnGuard Bulldog Mini TC U-Lock
 
3.8

(based on 6 reviews)

83%

of respondents would recommend this to a friend.

Pros

  • Durable (4)
  • Easy to use (4)

Cons

    Best Uses

    • City bikes (5)
    • Reviewer Profile:
    • Avid cyclist (4)

    Reviewed by 6 customers

    Sort by

    Displaying reviews 1-6

    Back to top

    (13 of 13 customers found this review helpful)

     
    4.0

    Good Value Mini U-Lock

    By The President

    from Denver, CO

    About Me Avid Cyclist, Casual/ Recreational, Competitive Cyclist, Triathlete

    Site Member

    Pros

    • Durable
    • Ultra Strong

    Cons

      Best Uses

      • City Bikes

      Comments about OnGuard Bulldog Mini TC U-Lock:

      This is a good mini U-lock at an affordable price. Not as technically theft proof as the more expensive Kryptonite, the advantage of this mini U is it prevents the most common tactics of thieves. Larger u-locks are susceptible to being broken with a car jack. The mini is too small to fit a car jack inbetween the bars. Also, the double locking barrel makes it harder to freeze and break with Liquid Nitrogen, and the lock is also not susceptible to infamous Bic Pen lock picking. If you don't want your bike stolen, use one of these. It is hard to get the front wheel and the frame attached to an object with this lock, but that's part of what makes it secure, so if you have fancy quick release wheels, use something else.

      (5 of 5 customers found this review helpful)

       
      4.0

      Survived a Half Year NYC messenger work

      By Nick 301

      from NYC, NY

      About Me Avid Cyclist

      Pros

      • Easy to Use
      • Lightweight

      Cons

      • Rusts
      • Sticks when wetsnowy

      Best Uses

      • City Bikes
      • Supplement lock

      Comments about OnGuard Bulldog Mini TC U-Lock:

      When used as a supplement for my heavy-duty 4ft, 25lb chain lock, the Mini gave me a feeling of added security in the most theft-prone parts of New York city over a half-year of bike messenger work in Manhattan. On my track bike, I could just squeeze the rear-wheel, seat-tube, and a street-sign into the U for a very quick run inside (5-mins or less) and a thief could only fit maybe a piece of re-bar inside the U to try and twist the lock off. This meant that even in places like Chinatown, Alphabet city, and Brooklyn I could save time and energy of using my heavy chain lock for very quick drops. When you lock you bike up 50 times a day, it makes a difference. I often slap my Mini onto my top-tube and around a sign even when I am using the chain, and when the chain has to reach around a big light post and the front wheel, I slap the Mini onto the back wheel.

      The cosmetics of this lock (anything not steel) wears off in a week or so of heavy use, but the simple shape makes electrical-taping easy to avoid scratching your paint or freezing your fingers in the winter. Even the vinyl on the shackle of my lock is still somewhat intact.

      Despite AT LEAST two attempts by NYC thieves to bust through this chunk of steel, it's held up and been a great tool in my lock-kit. Just don't let it be your ONLY lock unless you are in a more tame place, such as Boston or Philly or Chicago.

      • Gift:
      • No

      (2 of 2 customers found this review helpful)

       
      4.0

      good lock for the price

      By eug or

      from eugene, or

      About Me Casual/ Recreational

      Site Member

      Pros

      • Durable
      • Easy to Use
      • Lightweight

      Cons

      • Key is large and square

      Best Uses

      • City Bikes

      Comments about OnGuard Bulldog Mini TC U-Lock:

      Decent lock for the money (on sale). My only complaint is the top of the key is large, square and very pokey. Not for pocket use. My husband has a Kryponite with a much better key design (small oval). I only use this lock in the daytime on my fixed gear. I probably would not use it in a high crime area or at night.

       
      1.0

      disappointing - buy a kryptonite

      By spychic

      from alexandria va

      About Me Competitive Cyclist

      Pros

        Cons

        • Hard to Carry
        • Hard to Use

        Best Uses

          Comments about OnGuard Bulldog Mini TC U-Lock:

          while it's appealing in it's compactness, it's unusable as it's designed for mountain or aggressive bikers. before ever installing it, one of the yellow plastic ends cracked off. i super glued it back onto the lock, but is still is cracked. you can't ratchet it where the lock hangs out of the way of pedaling or the rear tire and/or where it won't scratch the paint. the pin that connects it to the holder is so loose it allows the lock to move about and make all kind of noise. it got so loose it swung over the rear tire and began to rub, so much that part of the plastic coating is gone. when i went to lock it up, the same loose pin got stuck inside the lock holder. it's unacceptable for a [$] lock to be this useless. buy a kryptonite instead.

          • Gift:
          • No
           
          5.0

          Great Little Lock!

          By bikesncoffee

          from Baltimore, MD

          About Me Avid Cyclist

          Site Member

          Pros

          • Durable
          • Easy to Use
          • Versatile

          Cons

          • No significant ones

          Best Uses

          • City Bikes
          • Mountain Bikes
          • Road Bikes

          Comments about OnGuard Bulldog Mini TC U-Lock:

          Really nice sized lock. Just big enough to reach between the frame and most lock-up areas. I picked this up after reading about how you can open up other locks with a bic pen and successfully attempting to do it with my old lock. I would get a burlier model if I locked up overnight in bad areas, but for daytime around town this works great!

          • Gift:
          • No
           
          5.0

          Great lock, good price.

          By kraken

          from Portland, OR

          About Me Avid Cyclist

          Site Member

          Pros

          • Durable
          • Easy to Use
          • Ultra Strong
          • Versatile

          Cons

            Best Uses

            • City Bikes

            Comments about OnGuard Bulldog Mini TC U-Lock:

            This lock is great, easy to stow, and easy to use. Small u locks are much harder to break than some of the oversized ones, so this adds security as well as a lighter weight. The frame holder is a little wonky, but it has held up for over a year and not completely broken (like some otherlock brackets I've used). Still a little weird.

            • Gift:
            • No

            Displaying reviews 1-6

            Back to top

            OnGuard Bulldog Mini TC U-Lock Related Items

            Other items like this:

            You might also like:

            Join REI and Enjoy the Benefits

            Members are eligible for an annual refund on qualifying purchases. Plus, they enjoy many more benefits. Get a lifetime membership for $20.

            Add an REI membership to my order.

            How are we doing? Give us feedback on this page.

            • Shopping Cart 
            • |
            •  
            • Buy REI Gift Cards
            • REI Gift Cards
            • Fast, easy and one size fits all.
            • Buy now!
            • Join REI today!
            • REI Membership
            • REI member benefits include an annual refund (typically 10% on eligible purchases).
            • Join REI today!
            • Sign up for REI Gearmail®
            • and get 15% off selected items!
            • Store Locator
            • Locate an REI store near you.