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  • OnGuard Bulldog MINI TC 5013TC Bicycle U-Lock
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OnGuard Bulldog MINI TC 5013TC Bicycle U-Lock

by OnGuard

Currently unavailable.
We don't know when or if this item will be back in stock.
  • Double bolt locking mechanism delivers up to 10 tons of pull strength
  • Massice 13mm hardened ultra steel shackle provides maximum cut resistance
  • Includes five laser cut keys 1 micro light key for nighttime use and 4 extra grip keys or four digit resettable combination on bombo models
  • It has 24-40 multi position quick release mounting bracket
  • Brand new and ready to ship

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Product Description

The On Guard bulldog U-locks are constructed of 13-Millimeter hardened ultra steel shackle with reinforced sleeve over crossbar and cylinder for added security. Available in key or combo lock; keyed locks include 5 laser cut keys (1 lighted) and all tube quick-release mounting bracket. 4.6 Tons pull strength with anti-drill and pick resistance. 13-Millimeter hardened ultra steel shackle with reinforced sleeve over crossbar and cylinder for added security. Bulldog includes free 1-year 1251 dollars anti-theft guarantee.

Product Details

  • Product Dimensions: 8.3 x 6.1 x 2.2 inches ; 4 ounces
  • Shipping Weight: 2.2 pounds
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • ASIN: B000FL3E8O
  • Item model number: 5013TC
  • Average Customer Review: 3.7 out of 5 stars  See all reviews (46 customer reviews)
  • Amazon Best Sellers Rank: #234,185 in Sports & Outdoors (See Top 100 in Sports & Outdoors)
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Customer Questions & Answers

Customer Reviews

Overall, a very good lock, just those two minor problems.
W. Fong
Overall I'm super happy with it, its definitely worth the 30 bucks I paid for it.
michael luostari
To open the stuck lock, I would have to apply a lot of force to turn key.
Al C.

Most Helpful Customer Reviews

145 of 146 people found the following review helpful By Westlake on July 25, 2006
The OnGuard Bulldog Mini 5013TC is a very strong, high quality mini U-lock, perfect for use in low to medium crime areas. After a long search that involved reading online reviews, articles, and comments on bike forums I settled on this lock as my best choice. It has worked out well.

Any U-lock, even heavy top of the line locks from OnGuard and Kryptonite, can be cut with power tools in a few minutes. Still, those power tools make a hell of a racket, and most thieves want to avoid attention. If you live surrounded by neighbors who consider bicycle theft using power tools to be entertaining performance art, the Bulldog Mini is probably not the lock for you.

For those of us who live in lower crime areas, where the thieves use manual tools, the best mini U locks (such as the Kryptonite and OnGuard minis) can provide protection equal or superior to heavier, more expensive U-locks against brute force attacks. The mini locks don't provide enough space for a thief to insert a large metal bar or a jack, so he can't apply the force necessary to quickly break the lock. The Bulldog Mini is strong enough to resist bolt cutters and the other standard attacks. Still, one should keep in mind that a thief with a good hacksaw, some spare blades, plenty of time, and a strong arm can eventually saw through the shackle of any U lock. It is best to park your bike in a location where such activity would be noticed.

All the Bulldog Mini's surfaces are covered with plastic, to prevent scratching the bike. The lock comes with a carrying bracket that attaches to the bike frame. Five flat keys are provided, including one key with a built-in light. The 3.5" x 5.5" measurement cited in the ad describes the inside of the U locking area, not the entire lock.
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34 of 34 people found the following review helpful By Charles G. VINE VOICE on February 21, 2009
I purchased both this lock, and the Kryptonite Evolution Series 4 Standard Bicycle U-Lock with Bracket (4-Inch x 9-Inch). These are the two locks that are considered to be near the top of the list for U-Lock security.

The very top is the Kryptonite New York Fahgettaboutit Mini Bicycle U-Lock (3.25 x 6-Inch), but I decided against that one due to weight and cost issues. My bike is old and new was only about $1000 when new, and so it isn't going to be the target that a more expensive bike would be.

Between this lock and the Kryptonite Series 4, both are high security. The reason I was in the market for a lock was that I had a cheap U lock cut with a pair of bolt cutters by an apartment manager unhappy that I had locked a bike to a railing. He sliced through that cheap U-lock silently, like butter, and both of these locks have been tested against that and neither lock was cuttable by bolt cutters. However, both can be defeated by a determined thief with power tools and a couple of minutes.

Both locks give you several sets of keys (at least 4) and let you either write down a code or register the code and they'll send free keys if you ask. Both locks include one lighted key, but the thing is huge and takes up so much room on my key chain that I took it off because I've really never needed the dim light it provides. Nice concept, but worthless - you can feel the key hole if it's pitch black.

Neither lock has a decent mounting system.
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25 of 28 people found the following review helpful By Steven K on June 18, 2008
The newer Bulldog MINI is distinguished by TWO yellow end caps and a different mounting bracket using a metal piece on the U-lock. Apart from the bracket, OnGuard claims the difference is mostly cosmetic, but OnGuard also indicates that the anti-theft insurance and guarantee terms differ between these versions. Moreover, OnGuard flatly states that the newer version of the Bulldog MINI is the one that should be purchased if this model is desired. If/when this seller distributes the new version, the photo should be changed. Note that the new Bulldog MINI list price is $35 list price, and that is the price for which it is sold at local recreational equipment stores. So paying that much (w/ shipping) for an older version might not be the best deal.
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13 of 15 people found the following review helpful By R. Sewald on March 16, 2007
In terms of durability and strength, this is a great lock. However, the mini size, designed to cut down on the leverage space between your bicycle and the rack, also make this a challenging fit for larger framed bikes. I have a women's Giant Cypress (a hybird) and there's no way this lock will fit around the hefty frame, the wider quick-release tire and the bike rack. The lock will fit around the frame and rack alone.

If you're concerned about securing a quick-release tire on a mountain bike or hybrid in addition to the frame (say you live in a college town where kids like to steal things regardless of value just for the heck of it) you may want to consider one of OnGuards larger locks or this lock in combination with a cable lock to secure any parts that are less tempting targets yet are quick and easy to remove.
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