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.
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.
- SRStephen R.Verified BuyerWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Angle Grinder Resistance, Portable, High Security2 days agoWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Angle Grinder Resistance, Portable, High SecurityRated 5 out of 5 starsSecurity at its best 🛡️🔒✨
I got the touring package X1 and X3, and you can tell the difference, but they're both quality. I wanted a lock for the front and back, but unfortunately, they won't fit my rear wheel on my R1200GSA with Pilot 6s. I just use both locks on the front, as you can see in the pictures, hoping it'll deter the tea leaves. Litlok gave great service and excellent communication throughout.
- JMJeffrey M.Verified ReviewerWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Angle Grinder Resistance, Lightweight, Made in Britain, Portable1 week agoWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Angle Grinder Resistance, Lightweight, Made in Britain, PortableRated 5 out of 5 starsLitelok X3
Just received today, looks the business, not too heavy and just fits on my MT09 Gen 3 front wheel.
- TSTarek S.Verified BuyerWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Angle Grinder Resistance, Portable, Made in Britain2 weeks agoWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Angle Grinder Resistance, Portable, Made in BritainRated 5 out of 5 starsCompact & Tough
The lock is well made and the protected rubber coating prevents my wheels from being scratched.
I use the lock through the front wheel and disk, this prevents the disc being cut. The key mechanism is great in that it keeps water out.
- JLJohn L.Verified BuyerWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Value for Money, Angle Grinder Resistance, Lightweight, High Security3 weeks agoWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Value for Money, Angle Grinder Resistance, Lightweight, High SecurityRated 5 out of 5 starsQuality lock
This lock and key system is beyond my expectations and is of the highest quality. I have two bikes and two x3 locks. Highly reommended.
- DWDavid W.Verified ReviewerWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Angle Grinder Resistance, High Security, Portable, Made in Britain3 weeks 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 starsLitelok X3 through the hub
this lock fits through the hub and brake disks making it more secure
Easy to put in place
soft covering reduces chance of marking the bike
so far very impressed
- PSPeter S.Verified BuyerWhat do you use the lock on? E-BikeWhat do you like about this lock? Great Quality, High Security1 month agoWhat do you use the lock on? E-BikeWhat do you like about this lock? Great Quality, High SecurityRated 5 out of 5 starsLitelok x3 ist ein gutes Schloss
Das Litelok x3 macht einen sehr wertigen Eindruck, was auch durch sein Gewicht verstärkt wird. Bügelgröße ist angenehm, um es auch am Fahrradrahmen zu benutzen. Nach anfänglichen Haken beim Verschließen scheint sich die Schließmechanik eingespielt zu haben. Was ich allerdings nicht so ganz verstehe sind die offenen Bohrungen an dem Schlossriegel (siehe Bild). Mal abgesehen von der Optik besteht Gefahr von innerer Verschmutzung und das Eindringen von Wasser. Die stirnseitigen offenen Bohrungen laden zum Aufbohren ein, was aber hoffentlich nicht geht. Zwei einfache Kappen aus Plastik würden das Schloss aufwerten.
Auf einen Stresstest mit einem Diamantwinkelschleifer habe ich verzichtet 😊
- JDJames D.Verified BuyerWhat do you use the lock on? Motorcycle, Commuter/City BikeWhat do you like about this lock? Great Quality, Value for Money, Portable, High Security1 month agoWhat do you use the lock on? Motorcycle, Commuter/City BikeWhat do you like about this lock? Great Quality, Value for Money, Portable, High SecurityRated 5 out of 5 starsLitelok x3
A bit of a late review, as I purchased this lock back in May 2024, but it’s definitely earned it.
After having my motorcycle stolen, I decided to invest in the Litelok X3—and nearly two years later, after three motorcycle tours and regular daily use, I can honestly say it’s been worth every penny. The build quality is excellent, and more importantly, it gives real peace of mind.
I’ve consistently felt confident leaving my bike in a wide range of locations, knowing the X3 is securing it through the front wheel of my Tracer. It also loops neatly through the grab handles, which makes it really practical to use day-to-day.
I’ve recently picked up a bicycle as well and living in London, security is always a concern—but having the X3 means I’m just as confident locking that up too.
Overall, a seriously solid investment and one I wouldn’t hesitate to recommend.
- MRMr R. D.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 Britain1 month 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 starsTOP NOTCH SECURITY! 🔑
Love the new Litelok X3! 😀
Designed and manufactured in the UK...a brilliant anti grinder product that gives more security for your pride and joy.
I would say quite an expensive purchase but tbh its worth every penny.
A quality piece of kit and a brilliant invention!
Perfect! 👏👏👏👏
Thank you Litelok! 🏍🔑
- DKDavid K.Verified BuyerWhat do you use the lock on? Mountain BikeWhat do you like about this lock? Angle Grinder Resistance, High Security, Made in Britain, Great Quality1 month agoWhat do you use the lock on? Mountain BikeWhat do you like about this lock? Angle Grinder Resistance, High Security, Made in Britain, Great QualityRated 5 out of 5 starsTHE pinnacle bike lock on the market today
I've given the lock a full 5 stars because, let's face it, it's a stunning piece of engineering and anything that more or less fully stymies the effectiveness of the workshy scrotes out daily trying to steal another person's pride and joy, deserves a medal and every award there is.
It makes me truly sad that I have to report an issue with the lock in that unfortunately it doesn't have enough length on the D (ooo er) for me to be able to effectively place it through the back wheel and the frame of my bike and still have enough play to get it around a typical locking point/pole.
Due to the rims on my (and I'm sure many others') bikes, I basically need to swop it for an X3 plus, which unfortunately doesn't exist yet, because the available clearance once it's around the rear tyre and frame upright is tiny and impossible to lock it to anything of useful thickness (see my extremely professional attached video)
So I now have something of a dilemma as to what to do with it unfortunately, as it's a lot of wedge to have dropped to have an item that I can't fully effectively use and I don't really want to be using it to just lock the frame.
So my question to Neil Barron is, when is the X3 plus making an appearance and may I swap it when it lands? :D
Other than that, kudos to you sir, I can't tell you how much it makes me smile to see the blog posts showing the bike saves you've enabled with your products. More power to your elbow and I await the announcement of the X3 plus with…
- KSKai S.Verified BuyerWhat do you use the lock on? E-BikeWhat do you like about this lock? Great Quality, Angle Grinder Resistance, High Security1 month agoWhat do you use the lock on? E-BikeWhat do you like about this lock? Great Quality, Angle Grinder Resistance, High SecurityRated 5 out of 5 starsSolid Top Notch quality
Everything about this lock screams quality.
The feel and heft of it. They key itself.
The feel when the key inserted and turned.
It’s smooth. No herky jerky motion.
The neoprene sleeve.
A thief spots that lock and unless she/he has hours to grind through it they will win out of luck.
Any thief will skip this one and find an easier lock to crack
