LITELOK X3
AWARDED WORLD'S TOUGHEST LOCK 2026
ANTI-ANGLE GRINDER
MADE IN BRITAIN
BUILT WITH BARRONIUM®
Accreditation
Sense of Security
A product that brings pleasure from the very first touch to the lasting feeling of confidence in your security.
Leonid N.
Feels Amazing!
After several hours research on the web watching test videos, it seems quite obvious that the Litelok X3 is the strongest lock out there. I got some of the best U locks, but the LITELOK X3 is another level above. The construction is phenomenal, it feels massively sturdy, and after seeing the test videos, I feel very confident leaving my bike to go shopping and else, I love it and would feel as safe with anything else.
Thank you for taking the time and energy to produce such a beast !
Nicholas S.
Great Lock!
The lock makes a super high-quality impression, is well made, easy to transport and feels really tight without rattling.
Ulrich L.
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!"
Bertrand Thiébault, Le Monde
"It took us nearly ten minutes of effort and seven standard cutting discs to take down this imposing Litelok X3! It is without a doubt the most resistant of all the locks tested, including among the so-called 'anti-disc cutter' models."
Success Stories
LITELOK X3 Saves E-Bike in Geneva #74
Matthieu reached out to share an incredible story of an attempted theft involving his £7,500 Riese & Müller Delite4 Touring GT HS e-bike. Even after the thieves got their hands on the bike, the...
LITELOK X3 Saves BMW F900GS Motorcycle in Naples #118
Carlo’s BMW F900GS, valued at 14,500 euros, faced a daring theft attempt in Naples. Despite thieves using an angle grinder, the LITELOK X3 lock held firm, stopping them in their tracks and keeping ...
LITELOK X3 Saves E-Bike in West London #56
The LITELOK X3 proved its strength and reliability when it successfully protected Etienne's £2.5k Moustache e-bike from an attempted theft in Maida Vale, West London. The incident occurred overnigh...
What Makes the World's Toughest U-Lock?
It is the most secure full-sized armoured 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
Armoured with Barronium™
Barronium® fused composite armour repels angle grinder attacks and eats angle grinder discs.
LITELOK X3
Barronium®
Barronium® is a fused composite armour 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
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.
What is the locking circumference of LITELOK X3?
LITELOK X3 has a full-sized locking circumference of approximately 100 x 195mm.
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.
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®, a patented anti-angle grinder material that is applied as a permanently fused composite armour, 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 armour, 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.
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
- MMMr M. P.Verified ReviewerWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Made in Britain, High Security, Angle Grinder Resistance20 minutes agoWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Made in Britain, High Security, Angle Grinder ResistanceReviewingLITELOK X3Rated 5 out of 5 starsSuperb piece of kit
Fantastic build quality, and fits perfectly through the front forks of my Honda Forza. Wish I’d purchased one sooner
- YFYing F. M.Verified BuyerWhat do you use the lock on? Commuter/City BikeWhat do you like about this lock? Great Quality, Angle Grinder Resistance, High Security, Made in Britain, PortableYesterdayWhat do you use the lock on? Commuter/City BikeWhat do you like about this lock? Great Quality, Angle Grinder Resistance, High Security, Made in Britain, PortableReviewingLITELOK X3Rated 4 out of 5 starsBest U-lock out there!
I bought a Kryptonite NY Diamond at first but it came with a chipped keyhole cover and the shackle had more slack than I’d like. Ended up returning it.
This lock definitely feels solid. The only reasons I didn’t give it full stars is, price increased recently and it’s already expensive and doesn’t come with a holder. The other reason is, the silicone like coating on the shackle is slowly rubbing off onto my handlebar. That’s how I carry the lock, also incase I have to defend myself it’s handy as a Baronium Knuckle. Just worried it will wear a hole in the coating.
- JHJoshua H.Verified BuyerWhat do you use the lock on? E-BikeWhat do you like about this lock? Great Quality, Angle Grinder ResistanceYesterdayWhat do you use the lock on? E-BikeWhat do you like about this lock? Great Quality, Angle Grinder ResistanceReviewingLITELOK X3Rated 5 out of 5 starsLitelock
I’ve been really impressed with the Litelok X3 so far. The build quality is excellent and it feels incredibly solid and secure in hand. I wanted a lock that would provide serious protection for my e-bike, and this gives me much more confidence when leaving it parked in public. The locking mechanism is smooth and easy to use, while still feeling extremely robust. It’s not the lightest lock out there, but that’s expected given the level of security it provides. Overall, it’s a premium product that feels worth the investment for protecting an expensive bike.
- CHCameron H.Verified BuyerWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Value for Money, High Security4 days agoWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Value for Money, High SecurityReviewingLITELOK X3Rated 5 out of 5 starsAmazing lock 👌
Definitely hammer proof
- SOSimon O.Verified BuyerWhat do you use the lock on? MotorcycleWhat do you like about this lock? Angle Grinder Resistance, High Security, Made in Britain1 week agoWhat do you use the lock on? MotorcycleWhat do you like about this lock? Angle Grinder Resistance, High Security, Made in BritainReviewingLITELOK X3Rated 5 out of 5 starsFits snuggly
It took me a few tries to find the best position as I didn’t want to just have it locked to the wheel. By going through the caliper mount means it needs more effort to move the bike.
- AEAnthony E.Verified ReviewerWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Lightweight3 weeks agoWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, LightweightReviewingLITELOK X3Rated 5 out of 5 starsAwesome Service fast Delivery
I love it a lot. now I have some relief, For when I’m out working on the road could be gone for months. thank you!
- SRStephen R.Verified BuyerWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Angle Grinder Resistance, Portable, High Security1 month agoWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Angle Grinder Resistance, Portable, High SecurityReviewingLITELOK X3Rated 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 month agoWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Angle Grinder Resistance, Lightweight, Made in Britain, PortableReviewingLITELOK X3Rated 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 Britain1 month agoWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Angle Grinder Resistance, Portable, Made in BritainReviewingLITELOK X3Rated 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 Security1 month agoWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Value for Money, Angle Grinder Resistance, Lightweight, High SecurityReviewingLITELOK X3Rated 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.
