LITELOK X3
Made in Britain
BUILT WITH BARRONIUM®
ANTI-ANGLE GRINDER
Awarded World's Toughest Lock 2026
Accreditation
As Good As It Gets
Had my old bicycle stolen with a U-lock from a popular company within seconds. After doing some research I ended up purchasing the X3 for my new ebike. Love this thing. Heavy duty and gives me piece of mind when locking it up outside. It also comes with a pouch I use before storing it in my pannier bag. Highly recommend and worth the investment in my opinion.
Nelson O.
Peace of mind
Strong, well made, and feels good in my hands! Don’t scratch the paint in my bike rims. But most importantly, I have the certainty that I can keep my eyes off my bike with this lock. Litelok X3 is superior to any other lock, that’s a fact!
Oscar Vazquez V.
Solid as an Abrams tank
UK quality. Unpickable Abloy lock. You need a torch to cut this baby. Angle grinder takes too long. It’s heavy but comes with a wet suit material bag so it’s easy to strap down with bungie cords. I purchased 2. Great investment to secure my E-bikes.
Lynn H.
Serious about security?
Every X-range lock already takes two full cuts to defeat. Add a second lock on a different point and you double the work — which is usually where a thief decides it's not worth it.
The Essential Kit
- 1Your X3 offers 20× more grinder resistance than leading D-locks, through Barronium® armour and an ABLOY® SENTRY cylinder that resists picking outright.
- 2A second lock on a second point doubles it: four cuts, double the discs, double the batteries, double the time exposed.
- 3Most thieves work to a tight window. Two Diamond-rated Liteloks is usually the point they decide it's not worth it and move on.
X3
Lock 2: X1
Two X1s on two separate points — Diamond-rated on both. Four cuts total required to steal your bike.
What the experts say...
John Milbank, Bennetts BikeSocial
"By having the Litelok X3 as part of that set-up, you’ve made your bike one of the hardest to steal on the street. The Litelok X3 is now my personal choice of portable lock, and very much worthy of a BikeSocial recommendation."
Carl Ellis, thebestbikelock.com
"The Litelok X3 is the most angle grinder resistant portable bike lock I’ve ever tested. And I’ve tested them all now, so that means it’s the most angle grinder resistant portable bike lock you can buy!"
Ben Clarke, Motorcycle News
"X3 Moto has achieved a Sold Secure Diamond rating for bicycle and motorbike applications. And for an added bonus, it’s made in Britain at a solar-powered factory."
Success Stories
LITELOK X3 Saves E-Bike in Brooklyn #83
In a city that never sleeps, bike theft is a constant threat. When thieves tried to steal a $2,100 e-bike in Brooklyn at 2 a.m., only one thing stood between them and success, the LITELOK X3. Scarr...
LITELOK X3 Saves Bike in Massachusetts #44
LITELOK X3 saved Ryan's $1,474 Lectric XP bike at Harvard University's Campus in Cambridge, Massachusetts. For bike owners, securing your ride can often feel like a stressful endeavour, especially...
LITELOK X3 Saves £7k Cargo Bike in London #103
Robert’s £7,000 Tern GSD e-cargo bike faced a determined theft behind London’s Tate Modern, but thanks to the LITELOK X3, it survived with only minor cosmetic damage.
What Makes the World's Toughest U-Lock?
It is the most secure full-sized armored U-lock on the market and contains a host of clever design features that make it easy to use and carry so you can keep your bike secure against the most determined bike thieves.
Lock Cylinder
LITELOK X3 is equipped with an ABLOY® SENTRY lock cylinder; the most pick-proof locking mechanism available.
Reflective Strips
X3 locks are finished with Onyx Black retro-reflective vinyl strips along the lock shackle and on the X's at each end. The reflective strips flash in headlights to keep you safe and seen.
Anti-Rotation
Unique anti-rotation feature protects against twisting attacks and single cuts
Armored with Barronium®
Barronium® fused composite armour repels angle grinder attacks and eats angle grinder discs.
LITELOK X3
Barronium®
Barronium® is a fused composite armor that offers unparalleled angle grinder resistance without adding extra weight. It is a super hard ceramic composite material that repels angle grinder attacks and turns the grinder's energy and force in on itself. Continuous cutting wears down the grinder discs, batteries and ultimately the grinder motor itself.
LITELOK X3
ABLOY® SENTRY
LITELOK X3 is equipped with an ABLOY® SENTRY lock cylinder; the most pick-proof locking mechanism available.
ABLOY® SENTRY is a new evolution of the unique ABLOY rotating disc technology that provides a smooth and reliable function in every environment.
LITELOK X3
LITELOK X-Pouch
Keep your LITELOK X in tip top condition and also keep any dirt and debris from your bag or panniers with our custom neoprene pouch. It’s a wetsuit for your LITELOK X3 and it's included with every purchase of X3.
LITELOK X3
X3 Tactical Mount
We've developed the X3 Tactical Mount (purchased separately) to make mounting your LITELOK X3 a breeze. Designed from scratch and tested to destruction, the X3 Tactical Mount is unlike any other mount. A tough mount for the world's toughest lock.
What's in the Box?
When you order a LITELOK X3, you will receive:
- LITELOK X3
- 2 x ABLOY Sentry Keys
- LITELOK X-Pouch
- Delivered in eco-friendly packaging
LITELOK X-Pouch
Keep your LITELOK X in tip top condition and also keep any dirt and debris from your bag or panniers with our custom neoprene pouch.
ABLOY Keys
All LITELOK X3s come with 2 ABLOY keys. Each keys unique code is pre-registered for your convenience so you can order replacement keys if necessary.
Eco-friendly Packaging
All LITELOK products get shipped in eco-friendly, plastic-free packaging.
LITELOK X3
Angle-Grinder resistant D-Lock.
LITELOK X3
Product Specifications
Get the lowdown on the vital statistics that make LITELOK X3 the most secure bike security choice for thousands of riders around the world.
LITELOK X3
Sold Secure Pedal Cycle Diamond, Sold Secure Powered Cycle Diamond, ART4
2.1kg / 4.6lbs
100 x 195mm (3.97 x 7.7")
145 x 275mm (5.7 x 10.8")
24 x 27.5mm
LITELOK X3
Frequently Asked Questions
Can X3 be cut with an angle grinder?
Unfortunately, all locks can be cut with the right tools and enough time. The exact time it takes depends on a number of factors like the power of the angle grinder, the type of discs used and the skill of the user. During our own and independent tests we found that X3 is at least 20 times more angle grinder resistant than the current leading D-locks as well as needing multiple discs and batteries to cut it.
How much does LITELOK X3 weigh?
LITELOK X3 weighs approximately 2.1kgs or 4.6lbs.
What's the difference between X3 Bike and X3 Moto?
There is no difference between the Bike and Moto versions. They are exactly the same locks. The reason why we differentiate them is to show how X3 can be used as an effective security device for all types of bicycles and motorcycles.
What's the difference between X1 and X3?
LITELOK X1 and X3 are both highly resistant to angle grinder cuts. This resistance comes from the layers of Barronium® that each lock features.
X3 uses a greater amount of Barronium® meaning it has a higher resistance to angle grinder cuts than X1.
X1 has at least 5 times the resistance to angle grinder cuts compared to the best selling D-locks whereas X3 has at least 20 times the resistance.
How do I carry LITELOK X3 on my bike?
If you'd like to carry LITELOK X3 on your bike, you'll need to purchase the X3 Tactical Mount - a tough mount for the world's toughest lock.
What is the locking circumference of LITELOK X3?
LITELOK X3 has a full-sized locking circumference of approximately 100 x 195mm.
Has LITELOK X3 been independently tested?
Yes, it has been thoroughly tested by Sold Secure and both locks achieve Sold Secure Powered Cycle and Pedal Cycle Diamond levels (the highest ratings available). It has also been tested by ART, and certified ART4.
(Note: Sold Secure is owned and administered by the Master Locksmiths Association (a not-for-profit trade association) and works from purpose built laboratories in the UK.
What is LITELOK X3 made from?
LITELOK X3 is built with Barronium®, our patented anti-angle grinder material that is applied as a permanently fused composite armor, providing maximum cut resistance and protection from angle grinder attacks. The Barronium® layer repels angle grinder discs.
The X range comprises of three layers of protection:
1. A fine-grain, hardened high-tensile steel core providing inner strength against multiple tool attacks
2. Barronium® anti-angle grinder armor, permanently fused to the core to repel angle grinder discs
3. A plant-based eco-rubber outer layer is soft to touch, so it won't damage your frame.
Who invented Barronium®?
Our founder and CEO, Professor Neil Barron, supported by Innovate UK, worked closely with some of the world’s leading material scientists for over 5 years to develop Barronium®, our ground breaking angle grinder resistant technology.
What is the warranty?
LITELOK X3 is sold with a 7-year warranty to provide peace of mind and covers mechanical or operational faults through normal usage. The warranty does not cover aesthetic wear and tear. It is important to register your lock and keys with us so that in the event that you lose your keys, replacements can be ordered.
- RORobin O.Verified BuyerWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, High Security, Made in Britain, Portable21 hours agoWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, High Security, Made in Britain, PortableRated 5 out of 5 starsSolid piece of kit
It may cost 10% of a lot of bikes out there but well worth the money and gives piece of mind .
- MSMichael S.Verified BuyerWhat do you use the lock on? Mountain BikeWhat do you like about this lock? Great Quality, Angle Grinder Resistance, Made in Britain, Portable, High Security3 days agoWhat do you use the lock on? Mountain BikeWhat do you like about this lock? Great Quality, Angle Grinder Resistance, Made in Britain, Portable, High SecurityRated 5 out of 5 starsOverkill for the bike it protects, but plenty for any bike I may own
What a fantastic, high-quality product. Fit and finish is excellent, having the Abloy Sentry core gives that extra reassurance, and the various attack tests online mean I’m confident that my bike will remain where I leave it. For my current bike, it is complete overkill, costing considerably more than the bike itself, but it’s good to know that any future bikes will be adequately protected. Portable angle grinders just weren’t a thing when I bought both my bike and old Kryptonite lock. Side-by-side, you can feel the improvements.
Extra points for Made in Britain, too.
- MMach1MikeVerified ReviewerWhat do you use the lock on? Motorcycle1 week agoWhat do you use the lock on? MotorcycleRated 5 out of 5 starsAdded confidence
Nothing is Thief proof, but I reckon the X3 is as close as you can get, fits the front wheel on my Himalayan 450 with a bit of room to spare allowing me to run my ground anchor chain through it when parked up. The X3 is slightly too small to go over the rear wheel.
I added the RBF tag as I'm old and forgetful, attempting to ride the motorcycle would not end well for the bike or rider!
Expensive but what price security?
- MCMartin C.Verified BuyerWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Value for Money, Made in Britain2 weeks agoWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Value for Money, Made in BritainRated 5 out of 5 starsTiger 900 rally
Fit front wheel fine, but not on the back wheel. Really good quality. Doing 6 days around Europe in September, us this as main lock, hope it don’t get tested!!!
Got x1 plus as well going to comb them were possible .
- KKKristian K.Verified BuyerWhat do you use the lock on? Road BikeWhat do you like about this lock? Great Quality, Angle Grinder Resistance, High Security3 weeks agoWhat do you use the lock on? Road BikeWhat do you like about this lock? Great Quality, Angle Grinder Resistance, High SecurityRated 4 out of 5 starsWorlds best cycle lock?
As per the product description this weighs 2.1kg so keep this in mind if you're going to be cycling for any greater distances and presumably carrying this with you. I can't realistically expect any opportunist theft to even bother trying to break this lock as its appearance alone makes a statement of "f*%k off!". The lock is expensive however it cost over £12k to replace my bike with a brand new one. The key mechanism can be slightly awkward to open sometimes. Some cyclist may prefer to go with the X1 which is slightly lighter but offers less resistance to thieves.
- VGVic G.Verified ReviewerWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Portable, Angle Grinder Resistance, Made in Britain, High Security1 month agoWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Portable, Angle Grinder Resistance, Made in Britain, High SecurityRated 5 out of 5 starsX3
Bought an X3 and very pleased with it. Certainly feels and looks the part. I hope it never gets put to the test although I'm sure it'll do it's job very well.
Fits through both discs on my Harley Street Glide
- JLJohnny L.Verified BuyerWhat do you use the lock on? MotorcycleWhat do you like about this lock? High Security1 month agoWhat do you use the lock on? MotorcycleWhat do you like about this lock? High SecurityRated 5 out of 5 starsExcellent lock
My local thief took one look and walk away caught him on my cttv
- NPNeil P.Verified BuyerWhat do you use the lock on? MotorcycleWhat do you like about this lock? Angle Grinder Resistance, High Security, Portable, Made in Britain1 month agoWhat do you use the lock on? MotorcycleWhat do you like about this lock? Angle Grinder Resistance, High Security, Portable, Made in BritainRated 5 out of 5 starsJust fits!
I have absolute confidence in the lock, my only worry was whether I could fit it on my speed RX.
Plenty of photos of the lock fitted to street triples, a couple of it fitted to speed 1050s but non of it fitted to a speed 1200. Bit of a leap of faith.
But it does, so it worked.
I bought a bundle (2x 'x3's) could really do with litelok producing a link piece like their rivals to tie two bike together with the same grinder resistance as the lock. As they say" the chain is only as strong as the weakest link".
- PHPaul H.Verified BuyerWhat do you use the lock on? MotorcycleWhat do you like about this lock? Angle Grinder Resistance, Great Quality, High Security, Value for Money2 months agoWhat do you use the lock on? MotorcycleWhat do you like about this lock? Angle Grinder Resistance, Great Quality, High Security, Value for MoneyRated 5 out of 5 starsBest quality lock I’ve ever bought
Worth every penny looks great and most importantly keeps your pride an joy safe I bought 2 of the elite x3 I’ll be buying more soon in the near future iam very impressed with theses had a free key ring also witch looks really nice in my opinion highly recommended seller quality of theses D rings are absolutely amazing delivery was great thank you so much regards Paul xxxxxx
- DBDavid B.Verified BuyerWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Angle Grinder Resistance, High Security, Portable, Made in Britain2 months agoWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Angle Grinder Resistance, High Security, Portable, Made in BritainRated 5 out of 5 starsFront wheel
Fits my Honda nt750
