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Blackburn Leavenworth U-Lock

4.4 out of 5 stars 10 customer reviews

Price: $29.95 - $69.99
Sale: Lower price available on select options
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  • Hexagonal 16mm alloy steel shackle with anti-scratch liner
  • Maximum resistance to cutting and leverage attacks
  • 10 tons of cut-strength
  • Lock mechanism is impervious to bump keys and picks
  • Three laser-cut keys with key replacement program

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WARNING:
CHOKING HAZARD -- This toy is a marble. Not for children under 3 yrs.
CHOKING HAZARD -- Small parts. Not for children under 3 yrs.

Product Description

Eighteen milimeter hardened alloy steel shackle with anti-scratch coating. Hexagonal shackle won't pivot out of the way after a single cut, double breaching effort.

Product Details

  • Product Dimensions: 12 x 8 x 2 inches ; 2.9 pounds
  • Shipping Weight: 2.9 pounds (View shipping rates and policies)
  • ASIN: B00K90B7A8
  • Item model number: Blackburn
  • Average Customer Review: 4.4 out of 5 stars  See all reviews (10 customer reviews)
  • Amazon Best Sellers Rank: #58,468 in Sports & Outdoors (See Top 100 in Sports & Outdoors)
  • Product Warranty: For warranty information about this product, please click here

Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Size: Long Verified Purchase
I don't care what method you use to lock your bike, it can get stolen with the right tools. The best you can do is make it harder for criminals because most crimes are crimes of opportunity. The crimes that involve a lot of time and a power tool will beat any lock out there, and it's not the lock's fault.

If you have a cable lock, you will stop only the most casual of thieves. Anyone with a simple lock cutter will break cables in 1 second. U locks need a lot more time and this lock has something most don't, a hex shape and double sided lock. This means that for the size and weight you are carrying, a thief would have to cut the lock twice in order to get in, because it can't be pulled apart or spun with just one cut in it.

I would still recommend using some other type of protection too, like a cable lock, or frame lock. But when it comes to U locks, this is very hard to beat at this price, size, and weight. It feels heavy and solid but not crazy heavy. This is about the heaviest I would care to put on my bike.

The mounting bracket is actually quite cool and can attach to the lock from the side or top, but it can only mount to a larger piece of bike, so I mount mine thru the bike rack. The lock is nicely coated with a rubbery material to avoid scratches.

I think this is a great size too, without being too big. To me this is a very underrated lock.
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Size: Regular Verified Purchase
Feels nice and sturdy, has a very modern/ sleek look that I love. It also weighs quite a bit but it comes with an attachment that lets you hook it onto your bike if needed. The limited guarantee is very time consuming so I did not bother applying for it. It will be quite useful for people who have more expensive bikes though.
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Size: Regular Verified Purchase
so far so good. i like the rubber coating around the actual bar. makes me feel better about having it rest against the frame. the holder has treated me will also. the lock snaps in and is snug. I also use some velcro to wrap around it to prevent some vibration noise that was just a minor annoyance. every once in a while its a little hard to get locked and unlocked but it seems to be because the rubber coating is restricting the base to slide all the way up. pushing the two pieces together while you lock or unlock, resolves that issue though.
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Size: Regular Verified Purchase
The lock feels very sturdy and I feel safe with it. I use it to lock my bike at the bike racks at my university where there is ramapant bike theft. I've had previous bikes stolen there, but they were not locked with ulocks. I use this one to lock the frame to the rack in conjunction with another minu u lock to secure my wheel to the frame for additional theft deterrance.
I do not use the included mount, I found. a way to lock it onto my frame that does not interfere with pedaling. I read other reviews about faulty key mechanisms. I've used it daily for about two weeks, so far so good.
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By D on March 20, 2014
Size: Regular Verified Purchase
Tough little lock that gets the job done! Much more burglar proof than your basic padlock and chain. Definitely recommended.
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