U-lock Comparison

Here’s a list of some of the most popular U-locks available today. You can use it to compare weights, sizes and security levels. I find the weights a bit hard to imagine so I have also converted them into a handy “number of cans of coke” weight to make it easier! You can also use the search field to filter what’s visible. For example, if you only want to see Sold Secure Gold rated locks, enter “Gold” into the search.

There is a similar table that compares chain locks here. If you’re still unsure about what type of lock you need, check out my lock guide. And if you need more specific recommendations have a read of our U-lock buying guide.

Most of the information in this table comes from the websites of the brands themselves. However, the weights of the OnGuard locks are not provided on their website, so I had to hunt around a bit and they may not be 100% accurate. If you see any mistakes please let me know and I will correct them!

Any data that needs further explanation is annotated with * and further details are provided at the foot of the table.

I hope you find the table useful. I’ll be adding more locks as I find them and if you have any locks you would like added please let me know below.

And if you do find it useful please share…

ModelThicknessWeightWeight in cans of cokeHeightWidthDouble boltedIn-house scoreSold Secure scoreART score
Kryptonite New York
Fahgettaboudit Mini
18 mm4.55 lb
(2.06 kg)
5.56.0”"
(15.3 cm)
3.25”"
(8.3 cm)
Yes10/10Gold & Motorcycle Gold4/5
Kryptonite New York Lock
M18-WL
18 mm6.1 lb
(2.76 kg)
710.3”"
(26.1 cm)
3.9” "
(10.3 cm)
Yes10/10Gold & Motorcycle Gold-
Kryptonite New York Lock
Standard
16 mm4.35 lb
(1.97 kg)
58.0”"
(20.3 cm)
4.0”"
(10.2 cm)
Yes9/10Gold4/5
Kryptonite New York Lock
LS
16 mm4.55 lb
(2.06 kg)
5.510.25”"
(26 cm)
4”.0"
(10.2 cm)
Yes9/10--
Kryptonite Evolution series 4
Standard
14 mm3.75 lb
(1.70 kg)
4.59.0”"
(22.9 cm)
4.0”"
(10.2 cm)
Yes8/10Gold3/5
Kryptonite Evolution series 4
LS
14 mm4.10 lb
(1.86 kg)
511.5”"
(29.2 cm)
4.0”"
(10.2 cm)
Yes8/10Gold3/5
Kryptonite Evolution LITE
Mini-6
11 mm1.65 lb
(0.74 kg)
26.0”"
(15.3 cm)
2.75”"
(7 cm)
No7/10Silver-
Kryptonite Messenger
Mini
11 mm1.83 lb
(0.83 kg)
26.5"”
(16.5 cm)
3.75”"
(9.5 cm)
No7/10--
Kryptonite Messenger
Mini+
11 mm2.51 lb
(1.14 kg)
36.5”"
(16.5 cm)
3.75”"
(9.5 cm)
No7/10--
Kryptonite Evolution
Mini-5
13 mm1.94 lb
(0.88 kg)
2.55.5”"
(14 cm)
3.25”"
(8.2 cm)
No7/10Silver2/5
Kryptonite Evolution
Mini-7 with cable
13 mm3.15 lb
(1.43 kg)
3.57.0”"
(17.8 cm)
3.25”"
(8.2 cm)
No7/10Silver2/5
Kryptonite Evolution
Mini-9
13 mm2.75 lb
(1.25 kg)
39.5”"
(24.1 cm)
3.25”"
(8.3 cm)
No7/10Silver2/5
Kryptonite KryptoLok series 2
Standard
13 mm2.85 lb
(1.29 kg)
3.59.0”"
(22.9 cm)
4.0”"
(10.2 cm)
No6/10Silver2/5
Kryptonite KryptoLok series 2
ATB
13 mm3.10 lb
(1.41 kg)
3.59.0”"
(22.9 cm)
5.0”"
(12.7 cm)
No6/10Silver2/5
Kryptonite KryptoLok series 2
LS
13 mm3.20 lb
(1.45 kg)
3.511.5”"
(29.2 cm)
4”.0"
(10.2 cm)
No6/10Silver-
Kryptonite KryptoLok series 2
Mini-7
13 mm2.45 lb
(1.11 kg)
37.0”"
(17.8 cm)
3.25”"
(8.2cm)
No6/10Silver2/5
Kryptonite KryptoLok series 2
Mini-7 Color Series
13 mm2.45 lb
(1.11 kg)
37.0”"
(17.8 cm)
3.25”"
(8.2 cm)
No6/10-2/5
Kryptonite KryptoLok
Combo
13 mm2.30 lb
(1.04 kg)
2.58.0”"
(20.3 cm)
4.0”"
(10.2 cm)
No6/10--
Kryptonite Keeper 12
Standard
12 mm2.40 lb
(1.09 kg)
38.0”"
(20.3 cm)
4.0”"
(10.2 cm)
No5/10--
Kryptonite Keeper 12
LS
12 mm2.80 lb
(1.27 kg)
3.511.5”"
(29.2 cm)
4.0”"
(10.2 cm)
No5/10--
OnGuard Brute
STD
16.8 mm4.17 lb
(1.86 kg)
57.96"
(20.2 cm)
4.53"
(11.5 cm)
Yes97/100Gold-
OnGuard Brute
LS
16.8 mm5.07 lb
(2.3 kg)
610.24"
(26 cm)
4.37"
(11.1 cm)
Yes97/100Gold-
OnGuard Brute
Mini
16.8 mm3.06 lb
(1.39 kg)
3.55.52"
(14 cm)
3.55"
(9 cm)
Yes97/100--
OnGuard Pitbull
STD
14 mm3.55 lb
(1.61 kg)
49.0”"
(22.9 cm)
4.53"
(11.5 cm)
Yes80/100Gold-
OnGuard Pitbull
LS
14 mm3.9 lb
(1.77 kg)
4.511.5”"
(29.2 cm)
4.53"
(11.5 cm)
Yes80/100Gold-
OnGuard Pitbull
Mini
14 mm2.54 lb
(1.15 kg)
35.52"
(14 cm)
3.55"
(9 cm)
Yes80/100Gold-
OnGuard Pitbull
Mini LS
14 mm3.31 lb
(1.5 kg)
49.46”"
(24 cm)
3.55"
(9 cm)
Yes80/100--
OnGuard Pitbull
Medium
14 mm3.31 lb
(1.5 kg)
46.9”"
(17.5 cm)
3.55"
(9 cm)
Yes80/100--
OnGuard Bulldog
STD
13 mm2.43 lb
(1.10 kg)
39.06”"
(23 cm)
4.53"
(11.5 cm)
Yes63/100Silver-
OnGuard Bulldog
LS
13 mm3.12 lb
(1.42 kg)
3.511.5”"
(29.2 cm)
4.53"
(11.5 cm)
Yes63/100Silver-
OnGuard Bulldog
ATB
13 mm2.68 lb
(1.215 kg)
39.06”"
(23 cm)
5.0”"
(12.7 cm)
Yes63/100--
OnGuard Bulldog
Mini
13 mm2.15 lb
(0.98 kg)
2.53.55”"
(9 cm)
5.52”"
(14 cm)
Yes63/100--
OnGuard Bulldog
Mini LS
13 mm3.12 lb
(1.42 kg)
3.59.46”"
(24 cm)
3.55"
(9 cm)
Yes63/100--
OnGuard Bulldog
Medium
13 mm2.35 lb
(1.07 kg)
2.56.9”"
(17.5 cm)
3.55"
(9 cm)
Yes63/100--
OnGuard Bulldog
Combo STD
13 mm2.75 lb
(1.25 kg)
39.06”"
(23 cm)
4.53"
(11.5 cm)
Yes63/100--
OnGuard Bulldog
Combo STD LM
11 mm2.2 lb
(1 kg)
2.59.06”"
(23 cm)
4.53"
(11.5 cm)
Yes58/100--
Abus Granit X-Plus 54 Mini13 mm2.56 lb
(1.16 kg)
35.51"
(14 cm)
4.23"
(10.8 cm)
Yes15/15Gold & Motorcylce Gold3/5
Abus GRANIT X Plus 540
230
13 mm3.20 lb
(1.45 kg)
3.59.0”"
(23 cm)
4.25”"
(10.8 cm)
Yes15/15Gold3/5
Abus GRANIT X Plus 540
300
13 mm3.65 lb
(1.656 kg)
412”.0"
(30 cm)
4.25”"
(10.8 cm)
Yes15/15Gold3/5
Abus uGrip Plus 50113 mm3.64 lb
(1.65 kg)
48.86”"
(22.5 cm)
3.74”"
(9.5 cm)
Yes13/15Gold3/5
Abus U-mini 401 Yellow14 mm2.34 lb
(1.06 kg)
2.55.71"
(14.5 cm)
3.15”"
(8.0 cm)
Yes15/15Gold-
Abus U-mini 4014 mm2.16 lb
(0.98 kg)
2.55.63”"
(14.3 cm)
3.15”"
(8.0 cm)
Yes11/15Silver-
Abus GRANIT Plus 470
230
12 mm2.62 lb
(1.189 kg)
39”.0"
(23 cm)
4.29”"
(10.9 cm)
Yes12/15Silver-
Abus GRANIT Plus 470
300
12 mm2.83 lb
(1.285 kg)
3.512.0”"
(30 cm)
4.29”"
(10.9 cm)
Yes12/15Silver-
Abus GRANIT Plus 640
230
12 mm1.98 lb
(0.90 kg)
2.59.0”"
(23 cm)
3.27”"
(8.3 cm)
Yes12/15Silver-
Abus GRANIT Plus 640
150
12 mm1.90 lb
(0.86 kg)
26”.0"
(15 cm)
3.27”"
(8.3 cm)
Yes12/15Silver-
Abus Granit Plus 51
230
13 mm2.87 lb
(1.30 kg)
3.59.0”"
(23 cm)
4.25”"
(10.8 cm)
Yes12/15Silver2/5
Abus Granit Plus 51
300
13 mm3.28 lb
(1.49 kg)
412.0”"
(30 cm)
4.25”"
(10.8 cm)
Yes12/15Silver2/5
Abus Granit Futura 64
230
11 mm2.05 lb
(0.93 kg)
2.59.0”"
(23 cm)
2.64”"
(6.7 cm)
Yes11/15--
Abus Granit Futura 64
150
11 mm1.6 lb
(0.726 kg)
26”.0"
(15 cm)
2.64”"
(6.7 cm)
Yes11/15--
Abus Granit Strato 61
230
11 mm2.39 lb
(1.085 kg)
39.0”"
(23 cm)
5.0”"
(12.7 cm)
Yes10/15--
Abus Granit Strato 61
300
11 mm2.71 lb
(1.229 kg)
312.0”"
(30 cm)
5.0”"
(12.7 cm)
Yes10/15--
Abus GRANIT 460
230
12 mm2.43 lb
(1.10 kg)
39.0”"
(23 cm)
4.29”"
(10.9 cm)
Yes9/15Bronze-
Abus GRANIT 460
300
12 mm2.76 lb
(1.25 kg)
312.0”"
(30 cm)
4.29”"
(10.9 cm)
Yes9/15Bronze-
Abus Varedo 47
230
12 mm2.62 lb
(1.189 kg)
39.0”"
(23 cm)
4.29”"
(10.9 cm)
Yes9/15Silver-
Abus Varedo 47
300
12 mm2.83 lb
(1.285 kg)
3.512.0”"
(30 cm)
4.29”"
(10.9 cm)
Yes9/15Silver-
Abus Sinus 46
230
12 mm2.43 lb
(1.10 kg)
3.59”.0"
(23 cm)
4.29”"
(10.9 cm)
Yes8/15Bronze-
Abus Sinus 46
300
12 mm2.76 lb
(1.25 kg)
312.0”"
(30 cm)
4.29”"
(10.9 cm)
Yes8/15Bronze-
Abus Facilo 32
230
12 mm2.29 lb
(1.04 kg)
2.59.0”"
(23 cm)
4.29”"
(10.9 cm)
Yes7/15Bronze-
Abus Facilo 32
300
12 mm2.51 lb
(1.14 kg)
312.0”"
(30 cm)
4.29”"
(10.9 cm)
Yes7/15Bronze-
Cocoweb Armbar14 mm3.2 lb
(1.45 kg)
410.6"
(26.8 cm)
6.7"
(17 cm)
No---
MasterLock 8195D16 mm3.13 lb
(1.42 kg)
3.58.27"
(21 cm)
4.33"
(11 cm)
Yes-Gold-
Hiplok D13 mm2.20 lb
(1 kg)
2.55.31"
(13.5 cm)
2.76"
(7 cm)
No-Silver-
Hiplok DC13 mm2.43 lb
(1.10 kg)
35.31"
(13.5 cm)
2.76"
(7 cm)
No-Silver-

74 thoughts on “U-lock Comparison

  • October 23, 2015 at 12:05 am
    Permalink

    This is a fantastic resource. The best one covering u-locks that I’ve ever seen. Thanks so much for doing this. It was a huge help.

    Reply
    • October 25, 2015 at 10:57 pm
      Permalink

      That’s really great to hear Edward! I’m glad it’s been of use to you.

      Reply
  • November 6, 2015 at 11:53 am
    Permalink

    Firstly congratulations on your magnum opus – a truly great piece of research and practical worth. I shall definitely be making a decision based totally on the info supplied.
    Just one question if I may – do the measurements stated, on the U locks for example, represent the outside measurements of the lock or the inside measurements of the D ? If the former, is there anyway I can access the latter perhaps ?
    Many Thanks,
    Paul

    Reply
    • November 8, 2015 at 7:50 pm
      Permalink

      Hi Paul,

      They are the internal measurements of the D. I wasn’t able to consistently find reliable external measurements, so I left them out. Sometimes you can find them with Google, but it’s a bit hit and miss.

      I’ll be adding more “hands on” reviews soon though and will include internal measurements in those.

      I’m glad you’ve found the page useful!

      Thanks

      Reply
  • January 8, 2016 at 9:54 am
    Permalink

    Many thanks for posting this resource – I have been struggling to find the lightest weight u-lock for cycle touring and the information enabled me to easily compare and make a selection. Cheers!

    Reply
  • March 30, 2016 at 9:40 am
    Permalink

    What an amazing Job. Thank you very much for spending your time on this.

    Reply
  • April 17, 2016 at 1:24 pm
    Permalink

    This is pretty damn incredible work here. I can’t imagine what kind of passion it took to get into this topic. I know I obsessed over the last couple days before I made my choice…or choices, as the case actually is- ending up with a long noose from Kryptonite (chain only) and a Brute Mini as its lock.

    Reply
    • April 17, 2016 at 3:34 pm
      Permalink

      Haha thanks! I just got fed up of hearing stories from people that had their new bikes stolen the first time they left them locked up with some crappy cable lock. It’s such an easy mistake to make. But it’s also so easily avoided. I honestly think there should be some minimum legal security requirement for locks sold for use with bikes.

      Good choice by the way!

      Reply
  • April 18, 2016 at 1:55 am
    Permalink

    Hello, what a lovely website, and incredibly convenient comparison table! I’m going to buy a new U-lock soon, most likely an OnGuard or Kryptonite from eBay, do you have any thoughts about whether I should choose a U-lock with a key or combination? I do not particulary mind carrying a key, but it could get lost along with the spare ones, so I’m thinking to get a combo one. Then I can write the combination down somewhere. But are they as safe as the ones with keys?

    Reply
    • April 18, 2016 at 5:56 am
      Permalink

      Hi Torbjørn,

      Combination locks are definitely less secure than keyed locks. I keep meaning to update the website to reflect this as I know it doesn’t really say it anywhere. I’ll try and dig up some evidence today and update both this comment and add the front page!

      As far as I’m aware the only Kryptonite or OnGuard locks with combinations are versions of the lower security Kryptolok and Bulldog models anyway.If you’re in a low risk area you might be able to get away with it. But I would certainly recommend a keyed lock over a combination.

      I hope that helps!

      Reply
  • April 18, 2016 at 6:49 am
    Permalink

    I don’t like combinations because the’re easy to get mucked up, hard to use in the freezing cold, and you need light to see what you’re doing. Keyed locks can be opened in low light or complete darkness.

    Reply
    • April 18, 2016 at 11:47 am
      Permalink

      Yep, these are good points again asdf. I think there’s a general feeling that they are less secure as well. Apparently it’s relatively easy to crack the combinations on these bike locks. There used to be a video on this lock picking website that showed a combination bike lock being cracked in 30 seconds, but it appears to have been removed.

      Whether all combination bike locks are vulnerable to these techniques, and how widely used they are by real thieves I’m unsure. But personally I’d rather not take the risk.

      And me, I don’t see using a key as much of an inconvenience. It’s hard to imagine riding my bike without my house keys, so as long as I keep my bike key with them, I reckon I should be OK!

      Reply
      • September 22, 2016 at 6:00 am
        Permalink

        Not everyone carries keys. I have beach cruisers and have digital door locks. I do not want to carry keys with me and also have the luxury of having any of my guests just have a combo. Yeah Yeah, combo locks are not as secure. That’s not the point. Some of us want them, so we are seeing which combo locks are the best. I thought ABUS were combo locks for their 6000, 6100 series and those are considered great locks. So what gives?

        Reply
        • September 22, 2016 at 11:44 am
          Permalink

          Fair enough! Good points. If they work for you then that’s great. I just think people should be aware that they’re not as secure as keyed locks. And I doubt that many people are aware of that.

          Reply
  • June 7, 2016 at 8:19 pm
    Permalink

    A piece of work. Really useful.

    Let me ask you a question. According to the table, the difference of weight between OnGuard Brute STD and LS is over 0.4 kg, whereas the difference between Kryptonite NY STD and LS is less than 0.1 kg. One would expect similar weight differences since the length differences are similar. So, what is the reason for the higher weight difference in the case of OnGuard Brute? And, what is your source of information for the OnGuard weights? I coludn’t find them on their website.

    Reply
    • June 8, 2016 at 11:58 am
      Permalink

      Hi Grzegorz,

      Good spot! You’re right: OnGuard don’t publish the weights of their locks.

      So, in order to get the weights you see in this table I either weighed the locks myself, hunted around on other websites or extrapolated from locks I did have the weights for.

      This means that inevitably the OnGuard weights won’t be entirely accurate. I think I’ve said before that I’d love people with particular OnGuard locks to weigh them and send me the numbers so I could publish more accurate information.

      But until then or until OnGuard start publishing them we’re stuck with my approximations.

      Talking specifically about the Brute, I too would expect the difference between the STD and the LS to be roughly similar to the Kryptonite lock. I’ll see if I can find some more accurate info…

      Reply
      • June 8, 2016 at 7:02 pm
        Permalink

        Thanks for your answer. If you find anything, it would be interesting. Anyway, if I decide to buy OnGuard, I will let you know about its weight.

        Reply
    • June 14, 2016 at 11:11 am
      Permalink

      Yes I’ll be adding some Blackburn locks when I get a chance Sam.

      Reply
      • June 16, 2016 at 2:08 am
        Permalink

        I read about them, I don’t think they make good U locks!

        Reply
  • June 14, 2016 at 5:03 am
    Permalink

    Hello
    I’m very confused!
    What the difference between these THREE ??? “Abus Mini 140 U-Lock” VS. “Abus U-mini 40” VS. “Abus U-mini 401 Yellow” ???
    thanks

    Reply
    • June 14, 2016 at 11:10 am
      Permalink

      Hi Sam,

      Yep it is very confusing this!

      There are only two locks though: the 40 and the 401. The 140 is just another number added to the end of the name of both of them!

      The 40 is Sold Secure Silver (and Abus 11/15)

      The 401 is Sold Secure Gold (and Abus 13/15).

      They both have 14 mm shackles despite what you may read elsewhere.

      The difference in security rating is apparently due to differences in the construction materials used and the internal mechanism.

      I hope that helps!

      Reply
      • June 16, 2016 at 2:03 am
        Permalink

        Company told me it’s same lock ))
        “Hello,
        There is no difference between the lock models you listed.
        Some websites pull information from 3 parties, and do not always get our correct product descriptions and pricing.
        Please let us know if there are any other questions.”

        I asked

        “Hello
        I’m very confused!
        What the difference between these THREE ??? “Abus Mini 140 U-Lock” VS. “Abus U-mini 40” VS. “Abus U-mini 401 Yellow” ???
        thanks”

        Reply
  • June 16, 2016 at 2:33 am
    Permalink

    I think to buy MasterLock 8195D – how $20 lock can be rated GOLD Standard? Because all other Gold cost more than $60. Thx

    Reply
    • June 16, 2016 at 6:25 am
      Permalink

      Because MasterLock are pretty poor quality

      Reply
      • June 16, 2016 at 6:16 pm
        Permalink

        you are saying that it’s bad quality? How it can be Gold Standard than? You won’t recommend to buy it? thx

        Reply
        • June 17, 2016 at 4:37 am
          Permalink

          So thief can cut this lock or open easy? No good protection?

          Reply
        • June 18, 2016 at 7:52 am
          Permalink

          Not poor security. As you say it’s Sold Secure Gold. But poorly made. Unreliable mechanism. Poorly weatherproofed. Unreliable. I know loads of people that have had MasterLocks that have become impossible to open after just a few months. And their after sales service is non-existent. They’re just not worth the hassle if you ask me!

          Reply
          • June 18, 2016 at 6:56 pm
            Permalink

            )))) please delete this lock from the list! I just bought it, and it very poor quality and it has jamming issues, key stock few times…. I didn’t believe in reviews )) Going to return it!

  • June 18, 2016 at 9:03 pm
    Permalink

    Funny thing, many people complaining about “Kryptonite Evolution Series 4” which has the same jamming issue……. cost more, seem to be better made and better quality….. but poor locking mechanism….. and many people writing that there is no customer service from Kryptonite.

    Reply
    • June 27, 2016 at 4:31 pm
      Permalink

      So I bought “Kryptonite Evolution Series 4 LS” very very bulky, heavy, huge lock! Good quality so far no jamming issues! Works well!

      Reply
      • June 27, 2016 at 10:05 pm
        Permalink

        Good choice: I like the Evolution Series 4 as well. Why did you go for the LS?

        Reply
        • June 28, 2016 at 3:18 pm
          Permalink

          I bought LS because I would not be able to lock standard lock to pretty much anything, it’s way to short, I lock rear wheel and frame to something heavy. And even LS sometimes doesn’t work, the width should be a bit wider for my bicycle to lock in straight line the wheel and frame to something… now I only can lock it in an angel 45 degree. And sometimes it’s short when the pole is sick…… So I search for another locking spot or fight a bit with lock to lock it….. )

          Reply
    • June 20, 2016 at 11:56 am
      Permalink

      Hi Gerrit,

      I actually left them out deliberately as I see them more as motorbike locks than bicycle locks. But maybe it would be useful for people to see them here all the same?

      Thanks

      Carl

      Reply
  • July 23, 2016 at 11:49 pm
    Permalink

    thanks, what an excellent website. I also started to look at weights and comparing them all and it was a nightmare. Im glad to see someone else has the tenacity to think this is really important to know – and I dont know why the companies dont supply the information more readily

    Reply
  • August 1, 2016 at 10:58 am
    Permalink

    Great resource! Just wanted to mention that I think you might have accidentally used the dimensions for the Kryptonite Evolution
    Mini-7 for the Mini-5 also. Amazon has the mini-5 dimensions as 3.27 x 1.18 x 5.51 inches and 2.29 pounds. I know Amazon’s numbers aren’t always accurate, but I just received mine and while it isn’t available to measure at the moment it is pretty small, and I’m almost positive it is not 7″ long. Thanks so much.

    Reply
  • August 22, 2016 at 1:15 pm
    Permalink

    Hey,

    Great site, really eye-opening.

    I live in Bristol, UK and I’ve just spent £450 on a road bike. Whilst it’s not top end, it’s nice enough to be a target. I’ve decided on two U-locks and to use them in the configuration as you recommend on your “How to lock your bike” page.

    I’m between the Kryptonite New York M18 and the Kryptonite New York Standard.

    The basic comparison (for a pair) is 18 mm, 5.52 kg, 26.1 cm, £140.40 currently on Amazon VS 16 mm, 3.94 kg, 20.3 cm, £99.80 currently on Amazon.

    My questions are 1. Are the extra 1.58 kg and £40.60 for a pair of M18s justified? 2. How much of an advantage is the smaller internal measurement of the Standard?

    Reply
    • August 22, 2016 at 9:44 pm
      Permalink

      Hi Dan,

      Are you talking about 2 M18s vs 2 New York Standards?

      I would strongly advise against either combination! Both would be incredibly heavy. Two M18s would be the same as 14 cans of coke! And two NY Standards would be the same as 10 cans of coke.

      Either of those is a huge amount of weight to be carrying around on a road bike.

      If you really need maximum security and the practicality of a standard size u-lock, then certainly the NY Standard is a great lock. But maybe pair it with a smaller u-lock like the Kryptonite Evolution LITE Mini-6 or the more secure Abus U-mini 401 Yellow?

      Alternatively the Abus GRANIT X Plus 540 230 is also a very secure standard size u-lock. Not quite as secure as the NY Standard but much lighter.

      I completely understand your desire to protect you bike with the very best locks but make sure you think about the practicalities of daily use too.

      So, getting back to your questions!…

      1. No the extra cost and weight are not worth it. The M18 is really a motorbike lock. That’s why it’s longer. In my opinion it’s overkill for a bicycle.

      2. The smaller internal measurement isn’t much of an advantage when it comes to such high security locks. The M18 may be more susceptible to leverage attacks but infact I’d say the extra thickness more than makes up for it.

      In summary … don’t buy the M18 for daily use with a road bike.

      I hope that helps!

      Carl

      Reply
  • August 25, 2016 at 7:18 pm
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    Hi Carl,

    Really helpful, thank you!

    Dan

    Reply
  • September 14, 2016 at 6:24 pm
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    Could you make the in-house scores use the same format so that it can be used for sorting?

    Very nice list 🙂

    Reply
    • September 15, 2016 at 11:28 am
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      I’m not entirely sure that’s a good idea Jesper, as it would suggest some commonality in the way they arrive at the in-house ratings.

      For example, if an OnGuard lock is 50/100 and a Kryptonite lock is 5/10 we could give them the same format: 5/10.

      But Krptonites definition of a 5/10 lock maybe very different to OnGuards definition of a 50/100.

      And by using the same format we’re suggesting they’re the same. I think it’s a bit presumptive and potentially misleading.

      Reply
    • December 9, 2016 at 12:17 pm
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      Hi Oscar,

      Wow, no I hadn’t seen that before! It looks great.

      4/5 stars from ART is a really impressive security rating. And it’s really cheap! It’s just a shame it isn’t more widely available.

      Have you used it yourself? I wonder what the weight is? Looks like it’s 1790 g. And how well it’s weather proofed?

      Good find! Thanks very much.

      I’ll add it to the list this weekend.

      Reply
      • December 9, 2016 at 5:12 pm
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        Thank you for your answer.

        Yes, I’ve used myself for a couple days. It looks quite good…. but I am not an expert…

        Currently I am trying to find out which one is best: On Guard Brute STD or Luma 55 HU. Both have similar price and dimensions.

        Luma’s has the lock protected by a “sliding gate” (please excuse my english). I think this answers your question. Shorter version of the lock is 1’6 kg, and longer version 1’8 kg. I don’t know if the lock can be broken with only one angle grinder cut or two…

        On the other hand, On Guard’s diameter is better (16’8 mm vs 16 mm). I think it doesn’t have any sliding gate, but it comes with this thing to attach it to your bike.

        By the way, Luma has also this unexpensive wall lock: http://es.store.luma.es/buscar?controller=search&orderby=position&orderway=desc&search_query=Fm1&submit_search=

        Reply
        • December 11, 2016 at 10:19 am
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          It looks from photos like the Luma is double bolted (so it would need to be cut twice), but I can’t find any confirmation of this.

          I think both the Brute and the Luma are great high security locks.

          A “sliding gate” has advantages and disadvantages. On the plus side, it protects the mechanism from dirt and grime. On the negative side, it can trap moisture that will freeze in cold conditions. Both of these will make the key difficult (or sometimes impossible) to turn.

          I would advise making sure you clean and lubricate cheaper locks (like these two) every few months to keep them in good working condition.

          Reply
          • December 12, 2016 at 7:45 pm
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            Thank you very much again for your answer.

            I can confirm that the anchor is double bolted ( each leg of the “U” has one groove, so the locks inserts in it a bolt) . I also have pics that confirm this, please let me know if you want me to send them to you.

            Thank you so much for the piece of advice about the “sliding gates”.

      • December 9, 2016 at 5:17 pm
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        Hardened steel, 12 mm diameter… what do you think? Safe enough?

        Reply
        • December 11, 2016 at 10:11 am
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          What’s 12 mm? The wall lock / anchor?

          Reply
          • December 12, 2016 at 8:01 pm
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            Yes, please see the dimensions here: http://www.motosgarrido.com/antirrobo/328418-fijamuros-luma-52mm.html

            More pictures and a quick review here: http://www.clinicadelabicicleta.com/blog/2016/03/robos-de-bicicletas-en-trasteros/

            Do you think this wall anchor would resist big bolt cutters with such a small steel section (12 mm), even though it is made of hardened steel? In additiion, the ring wall anchor seems quite big (internal diameter is 52 mm and U-anchors have a diameter of 16-17 mm).

            I think the ring wall anchor can be a good, simple and unexpensive solution to lock bikes to, as once the bike is locked your can’t. remove the ring it by unscrewing it. My concern is steel section of 12 mm…

            As per your recommendations for U locks and their section (min 16 mm to make sure bolt cutters can’t cut them), I am trying to find a similar ring wall anchor that has a section of 16 mm, but I can’t find online… 🙁 Do your know anything?

            Once again, thank you so much!

          • December 12, 2016 at 9:18 pm
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            Ahh cool.

            The good thing about a wall anchor is that it’s a long way from the floor! And the further the better.

            This is because thieves will try to use the floor for leverage when they attack our locks with bolt cutters. And this is obviously difficult (or impossible ) if the lock is far from the floor.

            In which case, if the 12 mm anchor is made from a good quality hardened steel, it may well be strong enough to resist even the biggest bolt cutters.

            I suppose it will depend on the strength of the thief and the size and quality of the bolt cutters.

            If you keep it well away from the floor then you’ll probably be OK in most instances.

            But otherwise, Abus do a 16 mm floor anchor that can be attached to a wall.

  • January 15, 2017 at 6:55 am
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    you can get hardened chains from some industrial fastener places, and also check your bigger local locksmith shops.

    Reply
    • February 15, 2017 at 8:55 pm
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      Good find Andrea. It is short. But there are plenty of other mini U-locks that are shorter!

      It looks like a good lock to me and it’s cheap too. No independent security ratings though.

      Reply
  • February 17, 2017 at 4:47 pm
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    I’ve just bought a Merida espresso 600 ebike and need help to find a gold standard U-lock (as specified by my insurers). It’s a very expensive bike and already has an ABUS 5650 fitted (Sold Secure had not reviewed this). The main thing I need to know is how to decide what size I need. I don’t mind about the cost as for the price of this bike it needs good security.

    Reply
    • February 19, 2017 at 10:27 am
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      Hi Sue,

      That’s a nice bike!

      I would recommend the Abus GRANIT X Plus 540 230, which is a standard sized U-lock. This should be big enough to lock the frame and the back wheel to a bike rack. And then you might want to think about a mini U-lock like the Kryptonite Messenger Mini for locking the front wheel to the bike rack.

      It looks like there’s quite a bit of distance between the front wheel and the frame so you might struggle to lock the front wheel to the frame as well as the bike rack.

      But with a good primary lock like the Abus 540, that shouldn’t be a problem.

      I hope that helps!

      Carl

      Reply
  • April 3, 2017 at 4:19 pm
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    Just wanted to say how helpful this page (and the entire site) has been for me. Thank you!

    Reply
  • April 13, 2017 at 11:39 am
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    Hello,

    Thumbs up and many thanks for this website!

    What I am unclear about is the lack of a rating on what appears to be perhaps a better/lighter and still very safe lock,
    between two Abus U-locks which stand almost side by side, in terms of characteristics:

    Abus Granit X-Plus 54 Mini: 13 mm 2.56 lb/1.16 kg Gold & Motorcylce Gold 3/5

    vs.

    Abus U-mini 401 Yellow: 14 mm 2.34 lb/1.06 kg Gold (no Motorcycle Gold)?

    Bottom one is thicker in the “U-bracket” by 1 mm of steel, and YET lacks the Motorcycle Gold;
    —and remarkably enough it is even 100gr. lighter … perhaps due to the fact of being a bit slimmer
    by almost ~3cm which is usually desirable, since tools to spring the lock are less easily placed/positioned
    due to the lack of extra space …

    Any thoughts on that?

    Cheers,

    Andreas

    Reply
    • April 13, 2017 at 5:24 pm
      Permalink

      Yes, well spotted Andreas!

      The Abus Mini 401 Yellow is one of the only Abus locks (along with the Sold Secure Silver Abus Mini 40) that is manufactured in China (most of it’s other locks are still manufactured in Germany).

      This is presumably to keep costs down. However, it seems that this has also led to to a decrease in quality. Certainly the Mini 40 is made from inferior steel than we’d normally expect from Abus and there’s a video of it quite easily being cut with a pair of 30″ bolt cutters.

      I would guess that the Abus Mini 401 Yellow suffers from similar inferior steel quality.

      Having said that, the difference in ratings may be more to do with the fact that the Granit X-Plus 54 Mini has a bigger body (this is also why it’s heavier).

      So I suspect that as well as being cast from better steel, the shackle is much more securely locked to the body in the 54 than in the 401.

      I hope that helps!

      Reply
  • April 14, 2017 at 8:19 am
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    Hi Carl,

    Thanks for your fast reply and the Made in China explanation (I guess these days there is not a single company that can keep
    afloat or competitive, without resorting to low quality control, products and manufacturing in China)!

    Meanwhile, I read/researched a bit further … and I think in one of the links somewhere on your pages towards ABUS performing
    various U-lock tests, one of their engineers explains why the squarish form of their U-locks is impossible to twist out of their
    bracket once broken;—so definitely the Mini 401 Yellow with its rounded U is of inferior security.

    Many thanks mate, … keep up this great source of information & exchange ; )

    Reply
    • April 14, 2017 at 8:33 am
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      Ahh yes I forgot about the parabolic shackle on the 540. That will clearly be a factor as well!

      Reply
  • May 3, 2017 at 4:41 pm
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    Absolutely brilliant report! One of the most thorough I’ve read on any topic. Well done you!!

    Reply
  • May 8, 2017 at 10:35 am
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    Hi Carl,

    Meanwhile, and since I had also contacted at the time Abus directly concerning the “Made in China” issue; here’s the update:

    > They simply didn’t reply!

    All I got since the 13th of April is the template answer as seen below …

    “Thank you very much for your e-mail, your interest in ABUS and the good feeling of security. Your request has been forwarded to our service department and will be attended to as soon as possible.”

    I think this speaks for itself, as well as the fact that Chinese steel is of the weakest and cheapest kind, in comparison to German or even Japanese steel (i.e. Global knives etc.).

    Many thanks again for the helpful advice!

    Andreas

    Reply
  • May 17, 2017 at 7:35 am
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    Have you tried the 560G from Altorlocks ? This is an articulated titanium cycle lock weighing only 584g.
    It’s a start-up company that I’ve been following online. Be interested to get an unbiased opinion. They’re pricy at 180$ but so light.
    Cheers
    David V

    Reply
    • May 17, 2017 at 7:35 pm
      Permalink

      Hi David,

      I’ve got to say I’m very dubious about the Altorlock. It has no independent security ratings. And since it’s made from hollow titanium tubes, I’d imagine it could be sawed through (or even cropped) pretty easily.

      Surely, if you’re going to charge $180 dollars you should provide some third party assurances of it’s level of security?

      Cheers
      Carl

      Reply
  • June 6, 2017 at 7:15 pm
    Permalink

    Hi Carl!

    I’m interested to know more about the ABUS Ketaro 505, here’s a link: https://www.bike-discount.de/en/buy/abus-ketaro-505-u-lock-300mm-245668. Do you know anything about that lock? I didn’t find it on ABUS official website, but it is available for purchase in bike stores in Croatia, which is where I’m from. If you do have info on the Ketaro, could you please compare it to ABUS Granit 460? They are both level 9/15 and they are similar in price (at least in Croatia). Granit is 12 mm and Ketaro is 13 mm. Does the 1 mm difference really make a difference? Which one of the two do you think would be a better option?

    I watched YouTube videos and saw how ABUS locks can also be cut with an angle grinder. But I’m thinking it is not very likely someone would be able to pull that off in the middle of the day, in the middle of the street. I’ve become aware that if someone is determined to steal your bike, they are going to do it, one way or the other. That is why I now decided to shift my focus on the locks that cannot be cut with a bolt cutter. So far, the only video I found on YouTube regarding a failed attempt of cutting an ABUS lock with a bolt cutter is this one here: https://www.youtube.com/watch?v=_DbD84jPZAQ (starting at 3:50). It was an ABUS Sinero that does not seem to be available for purchase anymore.

    Anyways, do you think or know if the ABUS Ketaro and/or ABUS Granit 460 could be cut with a bolt cutter? Do you know of any other locks of any other brand that cannot be cut with a bolt cutter?

    I also read somewhere that one shouldn’t opt for a lock that has a pin tumbler lock key or tubular key because they are easy to pick at. Is that true? What kind of key should a good lock have?

    I have a DEMA Geneve 1.o bicycle, which is a middle-class city/trekking bike ( https://www.dema.bike/category/1431-geneve ). Nevertheless, I live in the city of Zagreb where bike theft is very common, so I would like to invest in the primary U-lock. I was also thinking of buying a cheaper option of a U-lock as a secondary lock.

    P.S. Please, forgive me for a lengthy comment. I’m a newbie in the world of bikes 🙂

    Reply
    • June 7, 2017 at 8:58 pm
      Permalink

      Hi Nika,

      Yes both those locks can be cut with a bolt cutter if the thief can get the lock into a favorable position.

      In theory, any lock with a shackle less than 16 mm can be cut if the circumstances are favorable. However a sensible locking technique that keeps the lock far from the ground can make it very unlikely for locks with thinner shackles.

      I would go for the (Sold Secure Silver) Ketaro 505 over the (Sold Secure Bronze) Granit 460 simply because it’s more secure.

      Tubular pin tumbler locks are very insecure and should be avoided, but only the very cheapest bike locks use them these days. To my knowledge, none of the big brands use them anymore.

      But if there is a lot of bike theft in Zagreb, you’ve got a nice bike (and it looks like your bike is quite nice!), and you’re going to leave it unattended for more than an hour at a time, you might want to look at slightly more secure locks…

      http://thebestbikelock.com/best-bike-lock/sold-secure-gold-bike-locks/

      I hope that helps

      Reply

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