This is a well made chain and lock combo, but there is a flaw that allows you to undo 3 screws and pop the lock open. Watch the videos by Bosnian Bill and The Lockpicking Lawyer for a full look into it. Even knowing about this flaw, I decided the size and quality of the chain and lock core was good enough to warrant purchasing anyway. I removed each of these screws and applied heavy duty threadlock, then wound them back in so tight, they can no longer be removed with a normal hand tool. Others may want to tack weld them in place to make it permanent. The lock and chain really excels by being big and intimidating. The only way through would be with a grinder. Worth buying if you can address the flaw.
Verified purchase: Yes | Condition: New
Perfect item to deter the local crims from attempting a quick steal, will be buying another style also just as a secondary, I'm in a bad area where they have even started cutting the poles down, if they see a couple of on guard locks on there they will know even if they get the bike they won't get the locks off, extremely highly recommended, 100% best locks ever.
Verified purchase: Yes | Condition: New
weighing about 4 kilo. The chain has a good quality cover to stop chain damaging bike paint. Lock seems very solid and comes with 4 keys. Anyone wanting a strong bike chain/lock this is ideal.
Verified purchase: Yes | Condition: New
Awesome. And I have 2 onguard D locks. The beast is a full clown beast! Good luck stealing my wheels. Pound for pound on guard is the best.
Verified purchase: Yes | Condition: New
Very heavy duty product, will do the job, only criticism would be that it is hard to lock up.
Verified purchase: Yes | Condition: New
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