In 2020, Sold Secure added a fourth level to their lock security ratings: Sold Secure Diamond! And this became their highest security rating for bike and motorcycle locks. From their website:
- Diamond rated locks offer “the highest level of security” (tests include angle grinders)
- Gold rated locks offer “a high level of resistance against a dedicated thief”
- Silver rated locks offer “a compromise between security and cost”
- Bronze rated locks offer “defense against the opportunist thief”
At the bottom of this page, you'll find a full list of all the Sold Secure Diamond locks currently available (updated September 2024).
Sold Secure rate the security of bike locks from Bronze to Diamond
Why introduce a Sold Secure Diamond range?
As bikes (especially ebikes) become more expensive, and thieves use new tools and techniques, there is obvious need for more secure locks.
But adding more secure locks to the Gold rating only dilutes its value (by adding too much variety). So a new Diamond rating, which is aimed at really high value bikes and includes angle grinder attacks, makes perfect sense.
However, the new rating system is complicated by a further distinction between Pedal Cycles (bicycles) and Powered Cycles (ebikes and motorcycles), across the Gold and Diamond ratings.
So in fact there are 5 different security levels across 6 different ratings:
- Powered Cycle Diamond
- Powered Cycle Gold & Pedal Cycle Diamond
- Pedal Cycle Gold
- Pedal Cycle Silver
- Pedal Cycle Bronze
The idea behind this distinction is that there are some locks more suitable for bicycles and some locks that are more suitable for motorbikes (and ebikes). For example, disc locks only really work on motorcycles.
However, since most locks will work with both bicycles and motorbikes, manufacturers tend to submit their locks to be tested for both, and we end up with locks that have several ratings (more on this below).
Do you need a Sold Secure Diamond bike lock?
This will depend on your risk level. And the easiest way to work out your risk level is to answer the 3 quick questions in the quiz below...
The quiz above will recommend either a Sold Secure Diamond or Gold bike lock if your answers place you in a higher risk group. Or a Sold Secure Silver bike lock if your circumstances are lower risk.
It won't recommend Sold Secure Bronze bike locks because they're not secure enough for any circumstances!
Sold Secure Pedal Cycle Diamond vs Powered Cycle Gold
It’s important to note that Pedal Cycle Diamond and Powered Cycle Gold are essentially the same rating, as they use exactly the same testing criteria. So you will find that many of the locks in the Pedal Diamond list below, are also on the Powered Gold list.
Likewise, it’s also worth noting that Powered Cycle Diamond is more secure than Pedal Cycle Diamond. It is reserved for locks with high levels of angle grinder resistance (see more below).
Finding Diamond rated Bike Locks
You can search for all the Diamond rated bike locks on the Sold Secure website. But it's not very easy to compare different locks there.
So I've compiled a complete list of all the Sold Secure Diamond locks below. If you click on the names, you'll go to Amazon or other websites where you can compare prices and reviews. Some of these are affiliate links.
The "Cans of Coke" column lists the approximate weight of each lock in cans of Coke! I think this will help you imagine how heavy the locks really are.
Sold Secure Pedal Cycle Diamond Locks (formerly Bicycle)
| Model | Thickness | Weight | Cans of Coke | Width | Length | Lock Type | Features | |
|---|---|---|---|---|---|---|---|---|
 |
Kryptonite New York Fahgettaboudit Mini | 18 mm | 2.06 kg (4.55 lb) |
5.5 | 3.25 " (8.3 cm) |
6.0 " (15.3 cm) |
U-lock | |
 |
Kryptonite New York Lock M18-WL | 18 mm | 2.76 kg (6.1 lb) |
7.5 | 3.9 " (10.3 cm) |
10.3 " (26.1 cm) |
U-lock | |
 |
OnGuard Brute LS | 16.8 mm | 2.3 kg (5.07 lb) |
6 | 4.37 " (11.1 cm) |
10.24 " (26 cm) |
U-lock | |
 |
Abus Granit X Plus 54 Mini | 13 mm | 1.20 kg (2.65 lb) |
3 | 4.25 " (10.8 cm) |
5.51 " (14 cm) |
U-lock | |
 |
Abus Granit X Plus 540 230 | 13 mm | 1.45 kg (3.2 lb) |
4 | 4.25 " (10.8 cm) |
9.0 " (23 cm) |
U-lock | |
 |
Abus Granit X Plus 540 300 | 13 mm | 1.66 kg (3.65 lb) |
4.5 | 4.25 " (10.8 cm) |
12.0 " (30 cm) |
U-lock | |
 |
Hiplok DX | 14 mm | 1.11 kg (2.44 lb) |
3.5 | 3.5 " (8.5 cm) |
6.0 " (15.0 cm) |
U-lock | Wearable |
 |
Hiplok DXC | 14 mm | 1.35 kg (2.98 lb) |
3.5 | 3.5 " (8.5 cm) |
6.0 " (15.0 cm) |
U-lock | Wearable,Includes cable |
 |
Oxford Magnum 270 | 16 mm | 1.68 kg (3.7 lb) |
4.5 | 4.0 " (10.2 cm) |
10.16 " (25.8 cm) |
U-lock | |
 |
Yale YUL3 | 14 mm | 1.46 kg (3.22 lb) |
4 | 4.53 " (11.5 cm) |
9.06 " (23 cm) |
U-lock | |
 |
Kryptonite New York Fahgettaboudit Chain 1410 | 14 mm | 4.90 kg (10.80 lb) |
13 | 39.0 " (100 cm) |
Chain | ||
|
Kryptonite New York Fahgettaboudit Chain 1415 | 14 mm | 6.92 kg (15.25 lb) |
18.5 | 60.0 " (150 cm) |
Chain | ||
 |
Oxford Monster XL | 14.5 mm | 6.65 kg (14.7 lb) |
18 | 59 " (150 cm) |
Chain | ||
 |
Milenco Dundrod Chain Lock | 14 mm | 5.6 kg (12.35 lb) |
15 | 39.37 " (100 cm) |
Chain | ||
 |
Litelok Core Moto 125 | 2.9 kg (6.4 lb) |
8 | 49 " (125 cm) |
Cable | |||
 |
Via Velo Mini U Lock | 14 mm | 1.12 kg (2.48 lb) |
3 | 3.5 " (9 cm) |
5.7 " (14.5 cm) |
U-lock | |
 |
OnGuard Brute Standard | 16.8 mm | 2.12 kg (4.67 lb) |
5.5 | 4.53 " (11.5 cm) |
7.96 " (20.2 cm) |
U-lock | |
 |
OnGuard Pitbull Standard | 14 mm | 1.8 kg (3.97 lb) |
5 | 4.53 " (11.5 cm) |
9.0 " (22.9 cm) |
U-lock | |
 |
OnGuard Pitbull Mini | 14 mm | 1.42 kg (3.13 lb) |
4 | 3.55 " (9 cm) |
5.52 " (14 cm) |
U-lock | |
 |
OnGuard Pitbull LS | 14 mm | 1.9 kg (4.18 lb) |
5 | 4.53 " (11.5 cm) |
11.5 " (29.2 cm) |
U-lock | |
 |
OnGuard Pitbull Standard DT | 14 mm | 1.8 kg (3.97 lb) |
5 | 4.53 " (11.5 cm) |
9.0 " (22.9 cm) |
U-lock | |
 |
OnGuard X Series Pitbull Standard | 14 mm | 1.8 kg (3.97 lb) |
5 | 4.53 " (11.5 cm) |
9.0 " (22.9 cm) |
U-lock | Includes cable |
 |
Abus Extreme 59 260 | 16 mm | 2.70 kg (5.95 lb) |
7 | 4.4 " (11.1 cm) |
10.2 " (26 cm) |
U-lock | |
 |
Abus 770A SmartX 230 | 13 mm | 2 kg (4.41 lb) |
5.5 | 4.25 " (10.8 cm) |
9.0 " (23 cm) |
U-lock | |
 |
Abus 770A SmartX 300 | 13 mm | 2.2 kg (4.85 lb) |
6 | 4.25 " (10.8 cm) |
12.0 " (30 cm) |
U-lock | |
 |
Oxford Shackle 14 260 | 14 mm | 1.36 kg (3 lb) |
3.5 | 4.0 " (10.2 cm) |
7.8 " (19.8 cm) |
U-lock | |
 |
Oxford Shackle 14 320 | 14 mm | 1.78 kg (3.92 lb) |
5 | 4.0 " (10.2 cm) |
10.1 " (25.6 cm) |
U-lock | |
 |
Oxford Sentinel Plus 14 260 | 14 mm | 1.47 kg (3.24 lb) |
4 | 4.0 " (10.2 cm) |
7.8 " (19.8 cm) |
U-lock | |
 |
Oxford Sentinel Plus 14 320 | 14 mm | 2 kg (4.4 lb) |
5.5 | 4.0 " (10.2 cm) |
10.1 " (25.6 cm) |
U-lock | |
 |
Pragmasis DIB 130 | 16 mm | 1.5 kg (3.3 lb) |
4 | 3.43 " (8.7 cm) |
5.12 " (13.0 cm) |
U-lock | |
|
Pragmasis DIB 190 | 16 mm | 1.7 kg (3.75 lb) |
4.5 | 3.43 " (8.7 cm) |
7.48 " (19.0 cm) |
U-lock | |
|
Pragmasis DIB 260 | 16 mm | 1.92 kg (4.23 lb) |
5 | 3.43 " (8.7 cm) |
10.24 " (26.0 cm) |
U-lock | |
|
Pragmasis DIB 300 | 16 mm | 2.1 kg (4.63 lb) |
5.5 | 3.43 " (8.7 cm) |
11.2 " (30.0 cm) |
U-lock | |
 |
Halfords Advanced 23 | 14 mm | 1.72 kg (3.79 lb) |
4.5 | 4.33 " (11.1 cm) |
9.0 " (23 cm) |
U-lock | Includes cable |
 |
Master Lock 8279 EURDPRO | 14 mm | 1.3 kg (2.86 lb) |
3.5 | 4.09 " (10.4 cm) |
8.26 " (21 cm) |
U-lock | |
 |
Master Lock Mini 8278 EURDPRO | 14 mm | 0.93 kg (2.05 lb) |
2.5 | 3.15 " (8 cm) |
5.9 " (15 cm) |
U-lock | |
 |
SeatyLock Mason 140 | 13.7 mm | 0.97 kg (2.13 lb) |
2.5 | 3.35 " (8.5 cm) |
5.5 " (14 cm) |
U-lock | |
 |
SeatyLock Mason 180 | 13.7 mm | 1.07 kg (2.36 lb) |
3 | 3.35 " (8.5 cm) |
7.1 " (18 cm) |
U-lock | |
 |
SeatyLock Mason 220 | 14.1 mm | 1.53 kg (3.37 lb) |
4 | 4.53 " (11.5 cm) |
8.66 " (22 cm) |
U-lock | |
 |
SeatyLock Mason 300 | 14.1 mm | 1.72 kg (3.8 lb) |
4.5 | 4.53 " (11.5 cm) |
11.8 " (30 cm) |
U-lock | |
 |
Magnum Plus MagSolid | 14 mm | 1.8 kg (3.97 lb) |
5 | 4.53 " (11.5 cm) |
9.0 " (23 cm) |
U-lock | Includes cable |
 |
Magnum Plus Gigantes | 16.8 mm | 2 kg (4.4 lb) |
5.5 | 4.37 " (11.1 cm) |
10.24 " (26 cm) |
U-lock | |
 |
Yale YUL3C | 14 mm | 1.74 kg (3.84 lb) |
4.5 | 4.53 " (11.5 cm) |
9.0 " (23 cm) |
U-lock | Includes cable |
 |
Squire Stronghold D16/230 | 16 mm | 2.26 kg (4.98 lb) |
6 | 3.7 " (9.4 cm) |
9.0 " (23 cm) |
U-lock | |
 |
Litelok Core Plus 75 | 1.9 kg (4.1 lb) |
5 | 29 " (75 cm) |
Cable | Wearable | ||
|
Litelok Core Plus 100 | 2.25 kg (4.96 lb) |
6 | 39 " (100 cm) |
Cable | Wearable | ||
 |
Hiplok XL Noose | 14 mm | 5 kg (11 lb) |
13.5 | 39.0 " (100 cm) |
Chain | ||
 |
Hiplok DXXL Noose and U-lock | 14 mm | 6.11 kg (13.46 lb) |
16.5 | 39.0 " (100 cm) |
Chain | ||
 |
Milenco Coleraine 12 | 12 mm | 4.96 kg (10.93 lb) |
13.5 | 1 m 1.4 m 1.8 m |
Chain | ||
|
Milenco Dundrod 12 | 12 mm | 3.87 kg + (8.53 lb) + |
10.5 | 1 m 1.4 m 1.8 m |
Chain | ||
 |
Milenco Dundrod 14 | 14 mm | 5.02 kg + (11.07 lb) + |
13.5 | 1 m 1.4 m 1.8 m |
Chain | ||
 |
Squire Stronghold IC850 | 10 mm | 3.26 kg (7.19 lb) |
8.5 | 85 cm | Chain | ||
 |
Oxford Monster 12 | 12 mm | 5.20 kg + (11.46 lb) + |
14 | 1.2 m 1.5 m 2.0 m |
Chain | ||
 |
Oxford Patriot | 12 mm | 4 kg + (8.82 lb) + |
10.5 | 1.2 m 1.5 m 2.0 m |
Chain | ||
 |
Oxford Hardcore XC13 | 13 mm | 5.13 kg + (11.31 lb) + |
14 | 1.2 m 1.5 m 2.0 m |
Chain | ||
 |
Oxford Hardcore XL13 | 13 mm | 4.22 kg + (9.31 lb) + |
11.5 | 1.2 m 1.5 m 2.0 m |
Chain | ||
 |
Pragmasis Protector 13 mm | 13 mm | 2.9 kg / metre (6.39 lb) |
8 | 0.8 - 6 m | Chain | ||
 |
Pragmasis Protector 16 mm | 16 mm | 4.5 kg / metre (9.92 lb) |
12 | 0.8 - 6 m | Chain | ||
 |
Pragmasis Protector 19 mm | 19 mm | 6.3 kg / metre (13.9 lb) |
17 | 1 - 6 m | Chain | ||
 |
Pragmasis Protector 22 mm Titan | 22 mm | 12 kg / metre (26.5 lb) |
32 | 1.2 m 1.8 m |
Chain | ||
 |
Litelok X3 | 16 mm | 2.09 kg (4.60 lb) |
5.5 | 3.89 " (9.9 cm) |
7.67 " (19.5 cm) |
U-lock | |
|
Litelok X1 | 16 mm | 1.71 kg (3.77 lb) |
4.5 | 3.97 " (10.1 cm) |
7.7 " (19.7 cm) |
U-lock | |
 |
Hiplok D1000 | 16 mm | 1.93 kg (4.25 lb) |
5 | 3.62 " (9.2 cm) |
6.1 " (15.5 cm) |
U-lock | |
 |
Oxford Nemesis | 16 mm | 6.76 kg (14.9 lb) |
18 | 59 " (150 cm) |
Chain | ||
|
Oxford Nemesis | 16 mm | 8.55 kg (18.8 lb) |
23 | 78.7 " (200 cm) |
Chain | ||
 |
Hiplok DXF | 14 mm | 1.16 kg (2.56 lb) |
3 | 3.5 " (8.5 cm) |
6.0 " (15.0 cm) |
U-lock | |
|
Litelok Core Moto 150 | 3.4 kg (7.4 lb) |
9 | 59 " (150 cm) |
Cable | |||
 |
Hiplok DX1000 | 16 mm | 2.6 kg (5.73 lb) |
7 | 4.4 " (11.2 cm) |
8.07 " (20.5 cm) |
U-lock | |
 |
Abus Super Extreme 2500 | 14 mm | 2.2 kg (4.92 lb) |
6 | 4.1 " (10.4 cm) |
8.8 " (22.4 cm) |
U-lock | |
 |
OnGuard RockSolid |
15 mm | 1.4 kg (3.09 lb) |
3.5 | 3.15 " (8 cm) |
6.89 " (17.5 cm) |
U-lock | |
 |
Squire Stronghold D16 MAX |
16 mm | 2.84 kg (6.26 lb) |
7.5 | 3.70 " (9.4 cm) |
8.58 " (21.8 cm) |
U-lock | |
 |
Kohlburg Alcatraz | 13 mm 16 mm |
6 kg (13 lb) |
16 | 59 " (150 cm) |
Chain | ||
 |
Via Velo BIG U | 13 mm | 1.45 kg (3.2 lb) |
4 | 4.44 " (11.3 cm) |
9.25 " (23.5 cm) |
U-lock | |
 |
Hiplok Mega Chain | 22mm | 12.3 kg (27 lb) |
33 | 51 " (130 cm) |
Chain |
Sold Secure Powered Cycle Diamond Locks (formerly Motorcycle)
There are several bike locks that have been awarded Sold Secure Powered Cycle Diamond due to their angle grinder resistance.
| Model | Thickness | Weight | Cans of Coke | Width | Length | Lock Type | Features | |
|---|---|---|---|---|---|---|---|---|
|
Litelok X3 | 16 mm | 2.09 kg (4.60 lb) |
5.5 | 3.89 " (9.9 cm) |
7.67 " (19.5 cm) |
U-lock | |
|
Litelok X1 | 16 mm | 1.71 kg (3.77 lb) |
4.5 | 3.97 " (10.1 cm) |
7.7 " (19.7 cm) |
U-lock | |
|
Hiplok D1000 | 16 mm | 1.93 kg (4.25 lb) |
5 | 3.62 " (9.2 cm) |
6.1 " (15.5 cm) |
U-lock | |
|
Hiplok DX1000 | 16 mm | 2.6 kg (5.73 lb) |
7 | 4.4 " (11.2 cm) |
8.07 " (20.5 cm) |
U-lock | |
|
Abus Super Extreme 2500 | 14 mm | 2.2 kg (4.92 lb) |
6 | 4.1 " (10.4 cm) |
8.8 " (22.4 cm) |
U-lock | |
|
Squire Stronghold D16 MAX |
16 mm | 2.84 kg (6.26 lb) |
7.5 | 3.70 " (9.4 cm) |
8.58 " (21.8 cm) |
U-lock | |
 |
Oxford Beast 150 | 22 mm | 12 kg (26.46 lb) |
32 | 59 " (150 cm) |
Chain | ||
|
Oxford Beast 200 | 22 mm | 15.5 kg (34.17 lb) |
41.5 | 79 " (200 cm) |
Chain | ||
 |
Squire TC22-SS80CS | 22 mm 16 mm |
17.28 kg (38.1 lb) |
46.5 | 59 " (150 cm) |
Chain | ||
|
Hiplok Mega Chain | 22mm | 12.3 kg (27 lb) |
33 | 51 " (130 cm) |
Chain | ||
 |
Kryptonite New York Diamond |
16 mm | 2.3 kg (5.07 lb) |
6 | 6.8 " (17.3 cm) |
10.6 " (27.1 cm) |
U-lock |
The Litelok X3 and the Hiplok D1000 provide the most resistance to angle grinders. The Litelok X1 offers slightly less resistance, but it's lighter, cheaper, and it's the only one that comes with a frame mount.
Check out my Litelok X1 vs Hiplok D1000 comparison, for more information on choosing between the two.
I hope you find these lists useful. If you have any questions about the Sold Secure ratings or which locks are more secure than others, leave a comment below, and I'll get back to you very quickly.
And if you're still not sure which lock to choose check out my three-step guide to help you find the best bike lock for you!
This page contains affiliate links, which means I may earn a small commission if you click through and make a purchase. You will not pay any extra. More details here.
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Hey Carl, in the new Sold Secure catalogue the Seatylock Mason has been Diamond awarded. Makeing it by far the lightest of its kind – it was already the lightest in the Gold section before. So I guess it shall also have its place in the best lightweight lock section. I wish the 180mm version has the great Click n’ Ride system that Hiplok has to carry the lock on your trousers (I even carried the Hiplok DX on my swim wear ^^).
Best regards Thomas
OK you have found a way to stop your bike from getting stolen. In impressed I have st least 4 bikes stolen at the time living in NY it has made me sic anyway some one told me about gallium can be bought on amazon destroys aluminum..How have you avoided this situation. I’m putting together another bike vintage specialized and I’m not ready to loose this to a thief.
How can my story end like yours?
Simply find the right level of security for your risk level, Dennis!
Hiplok dx is a Diamond certfied lock acording to there home page. Not a gold.
Hi Stefan
Thanks for your comment.
Unfortunately the Sold Secure rating system has become ridiculously complicated.
As well as Bicycle Gold and Bicycle Diamond, there is now Motorcycle Gold and Motorcycle Diamond.
And each lock is often rated under both the Bicycle and Motorcycle umbrellas.
So the Hiplok DX is Bicycle Diamond and Motorcycle Gold.
If you look in the Gold and Diamond pages on this website, you’ll see I’ve divided them up this way and the Hiplok DX is listed correctly.
Thanks!
Carl
Hi, this is a great list. I see you haven’t included any of the Pewag products (also rated SS Gold) – any thoughts on these?
How come something like the Yale one is diamond rated and only like 30-40$? Is it really safe like other diamond ones and better than all the gold ones?
Hi Benny,
Yes, it will very likely be more secure than the more expensive Gold rated locks. It might not be as well made though, so make sure you clean and lubricate it regularly.
Thanks!
Thanks for doing this, helps alot!
Hi, I’m planning on using level 10 ABUS chain and an ABUS Granit series lock to secure a bike.
My insurance company insist on Secure Gold Rated locks & chains, any idea if they comply?
Hi Jon,
Can you be more specific about the locks (provide the exact model names)?
There are several Granit locks and level 10 chains.
Thanks!
Carl
Hi. Really like your reviews, very helpful. I’m buying a specialized sirrus x4.0 bike for my daughter for university. Can you tell me the best diamond rating lock available that’s suitable for this bike please. Thanks for your time.
Hi Phil,
That’s an expensive bike and universities are high risk areas, so I would recommend the Litelok X1 as it has some angle grinder resistance.
If you feel that’s too much, then I also like the SeatyLock Masons, the Hiploks (DX or DXF) or the Abus Granit X Plus,
Thanks!
Carl
What’s the cheapest one on this list?
Hi Jonathan,
Prices vary all the time, so it’s best to click some of the names and find out!
But Burg Wachter, OnGuard, Via Velo and Etook are usually cheap.
I hope that helps!
Carl
Can’t wait to see tests and reviews on the skunklok carbon.
https://thebestbikelock.com/best-u-lock/skunklock-carbon-review/
Struggling to find your gold rating locks please could you direct me
https://thebestbikelock.com/best-bike-lock/sold-secure-gold-bike-locks/
Hello! You can probably add OnGuard Rock Solid U-Lock to the list of “Sold Secure Powered Cycle Diamond Locks (formerly Motorcycle)”
Hi Nik
I’ve just added it.
Note that it is Pedal Diamond rather than Powered Diamond though. Which is weird!
I’ll be testing it as soon as I can get hold of a it!
Thanks
Carl
It looks like the Litelok X1 and the other angle grinder resistant locks have been reclassified to the Powered Cycle Diamond category (and removed from this Pedal Cycle Diamond which was confusing in the first place), so your lists need updating!
Good to see Sold Secure giving those locks a completely separate category for the step change in security they provide.
Yep, but hey still keep their Pedal Cycle Diamond category, Dylan.
Thanks for this writeup!
Have you tested the locking bars for grind resistance? I’m curious if those all have the same treatments as the shackles themselves, or if they’re easy weakpoints on any of these locks.
Hi Ash,
I’ve tested the crossbars of a lot of the angle grinder resistant locks.
But I haven’t done all of them yet. And it hasn’t been very scientific.
All the ones I have tested had the angle grinder resistant material in the crossbar as well.
And I didn’t feel like it was particularly a weak point for any of them.
I hope that helps!
Carl
Hi !
Just a big thank you from France !
In my opinion, it’s the most complete and accurate site, and the one that centralizes all the information in the best possible way. Many thanks for the time invested in these tests, which are given to us free of charge.
I’m still hesitating between the Litelok X3, which is the best and slightly bigger, but which at the moment costs 310€ with the attachment system, and the Oneguard Rocksolid, which is lighter and which I can find for 190€ (without the attachment system, which doesn’t exist anyway), and which seems to me to be very good value for money, but a bit less reassuring than the Litelok …
Hi Tif,
Yeah it’s a difficult choice. The OnGuard RockSolid is still a very secure lock, so if you are on a tight budget it’s a very good choice.
Thanks
Carl