2 of 2 people found the following review helpful
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This review is from: Kryptonite Evolution Series 4 U-lock with FlexFrame bracket (Sports)
This bike lock is very heavy and in the world of bike locks that's a good thing. Apparently it's resistant to the type of theft where they twist the bike to break the lock and judging by the thickness of the metal, I wouldn't rate anyone's chances on being able to cut the lock.
The downside, and it's relatively big, is that the thing that comes with it to attach to your bike is beyond useless. No matter how well you attach it, no matter how well you tighten it, it will ALWAYS come loose. I thought the other reviewers just didn't do it right, I was wrong - it is by far the worst thing I have ever seen. I would have rather they didn't include it if it was going to be this useless!
Summarise - Lock: Great. Attachment: Rubbish