ONGUARDBrute LS 8000 Long Shackle Bike U-Lock (Sold Secure Gold)

Doing the job so far. Very robust, which makes it rather heavy. Worth the money I would say.

Feels very good quality. However it is very heavy so carrying it around can be a bit of a nightmare. If you are using it in a fixed place e.g. work it is probably worth leaving it there. It comes with free key insurance cover and being gold standard should be good enough for what I need. Time will tell!

It appears to be a very good lock. I've had it for about 6 months and have been using it most days for about 4 months of that time. doesn't appear anyone has tried to break it so can't comment on that but appears very strong. Sadly, the lock system stopped working now and even more annoyingly it's locked onto my bike and I can't unlock it.

This is a great lock and doesn't seem like it will be physically defeated by anything but an angle grinder (although I'm not sure if they have secured the cylinder design since Bosnian Bill showed how an unskilled picker can open it).

I've had this bike lock since the end of September and it's a great lock. It's well worth the price and locks my Giant Roam 2 very securely. I recommend getting WD40 specialist Fast Release Penetrant to lube it up from time to time. A few people have complained about these types of locks seizing up and staying shut but that spray does the trick to keep the lock working the way it should.it's nice and long so you can lock your wheels to the frame and the bike rail. The only down side is that I think the OnGuard warrantee is limited to the US but I think this lock is good enough as a standalone product. It's kinda heavy but it'll deter thieves and that's what you want! comes with a few spare keys and a lock holder you can screw onto your bike frame.

Seems like a good quality item, I guess I'll only really know how good it is if someone tries to steal my bike! As another reviewer has said, it IS heavy, but I was prepared for that - trouble is I'd forgotten to check the size and in spite of coming with a mounting bracket, it doesn't fit in my frame triangle! I chose the biggest size for flexibility in use, to enable me to be able to lock to a wide variety of types of street furniture, and at the moment I think that was the right choice. I've tried the mounting bracket on a front fork, but I don't really like that much weight on the front wheel and at the moment the lock rides in my pannier bag. I'm fairly good with my hands and plan to make an adaptor to attach the mounting bracket to the back rack where I can keep the weight central.

Wow. What a quality for money! You won't find gold sold secure labelled lock with 0.6" thickness anywhere for this price! I have done my research and I am very happy with my purchase having watched Youtube reviews my understanding is that you would need a grinder to cut this. I also purchased a On-Guard Akita-8044 Looped Cable - Black, 12.0 x 1.0 cm in addition. you would be surprised to find that my bike only worth about £100. However, I had 2 of my bikes stolen from me previously, I know exactly how it feels. I want to limit the chance of it happening again. The only down side, that I did not expect, is the weight. (this is why it gets 4 stars) ...it is considerably heavier than any of my previous locks.

It's hard as nails. Super tough steel, 4 vault simultaneous locking system etc etc. It comes with 5 keys and the master key has an led light. Awesome toughness at a great price