Supreme Urban Bundle - X1 and X1
AWARDED WORLD'S TOUGHEST LOCK 2026
ANTI-ANGLE GRINDER
MADE IN BRITAIN
BUILT WITH BARRONIUM®
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Blog posts
LITELOK X1 Sauve un Vélo à Berlin #90
Lorsque Muna a verrouillé son vélo à Wittenbergplatz à Berlin, des voleurs ont tenté de couper son LITELOK X1, mais ont échoué. La technologie anti-meuleuse du cadenas a tenu bon. Son histoire mont...
LITELOK X1 sauve un vélo de route à Copenhague #21
Andreas a partagé son expérience avec une tentative de vol sur son Trek Émonda SL5 à Copenhague, au Danemark. Le LITELOK X1 a sauvé le vélo d'une tentative de vol le samedi 3 février. "La tentative...
LITELOK X1 Sauve des vélos Cowboy à Londres #47
Le 1er novembre à Londres, le LITELOK X1 a réussi à protéger deux vélos électriques Cowboy d’une tentative de vol impliquant une meuleuse d’angle. Roman nous a raconté comment le cadenas a déjoué l...
What Makes the World's Best Bike Lock?
LITELOK X1 is the only full-sized armoured D-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
X1 features a high-quality lock cylinder which is durable and pick-resistant. The keyhole is protected from dirt, dust and moisture with our innovative self-sealing silicone keyhole cover.
Reflective Strips
X1 locks are finished with Quartz White 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
Bio Polymer
The natural finish soft plant-based eco-rubber outer layer won't damage your frame
Armoured with Barronium®
Barronium® fused composite armour repels angle grinder attacks and eats angle grinder discs.
LITELOK X1
Tested to Destruction
Tested against the most D-locks on the market, LITELOK X1 is at least 5 times more resistant to angle grinder cuts. Additionally, X1 requires multiple discs to cut and due to its anti-rotation system, needs to be cut on both sides to remove.
LITELOK X1
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 X1
Frequently Asked Questions
Can X1 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 X1 is at least 5 times more angle grinder resistant than the current leading D-lock as well as needing multiple discs to cut it.
What’s the difference between Keyed Alike and Keyed Differently?
Keyed Alike means both locks use the same key.
- You only need to carry one key for both locks.
Keyed Differently means each lock has its own unique key.
- You’ll have separate keys for each lock.
How much does LITELOK X1 weigh?
LITELOK X1 weighs approximately 1.7kgs or 3.7lbs.
What's the difference between X1 Bike and X1 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 X1 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 higher 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 U-locks whereas X3 has at least 20 times the resistance.
What is the locking circumference of LITELOK X1?
LITELOK X1 has a full-sized locking circumference of approximately 101 x 196mm meaning you can lock more bikes in more places than other armoured u-locks.
Can I attach LITELOK X1 to my bike?
LITELOK X1 is compatible with our innovative X1 Tactical mount for mounting the lock on your bike frame. The X1 Tactical Mount fits a wide variety of bikes and e-bikes ensuring your LITELOK X1 is held securely even the roughest of terrain.
X1 is also compatible with the Twist & Go mount.
Both of the X1 mounts are sold separately.
Has LITELOK X1 been independently tested?
Yes, it has been thoroughly tested by independent testing bodies Sold Secure and ART. Both locks achieve Sold Secure Powered Cycle and Bicycle Diamond levels (the highest ratings available) and 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 X1 made from?
LITELOK X1 is built with Barronium®, our patented anti‑angle grinder material, applied as a permanently fused composite armour to provide 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 X1 is sold with a 3 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.
- SSSimon S.Verified BuyerWhat do you use the lock on? Mountain Bike, Communter/City BikeWhat do you like about this lock? Great Quality, High Security, Angle Grinder Resistance2 hours agoWhat do you use the lock on? Mountain Bike, Communter/City BikeWhat do you like about this lock? Great Quality, High Security, Angle Grinder ResistanceReviewingLITELOK X1Rated 5 out of 5 starsSecure choice
Robust lock with better angle grinder resistance than competing products
- BRBrian R.Verified BuyerWhat do you use the lock on? Touring BikeWhat do you like about the lock? Angle Grinder Resistance, Portable, Made in Britain, Great Quality, Flexible17 hours agoWhat do you use the lock on? Touring BikeWhat do you like about the lock? Angle Grinder Resistance, Portable, Made in Britain, Great Quality, FlexibleReviewingLITELOK X1 MOTORated 5 out of 5 starsSECURED
Quick and Easy to thread through the front wheel and recognised by the insurance industry for its effectiveness, what’s not to like.
- JGJoel G.Verified BuyerWhat do you use the lock on? Touring BikeWhat do you like about the lock? Great Quality, Value for Money, Angle Grinder Resistance, High Security, Lightweight18 hours agoWhat do you use the lock on? Touring BikeWhat do you like about the lock? Great Quality, Value for Money, Angle Grinder Resistance, High Security, LightweightReviewingLITELOK X1 MOTORated 5 out of 5 starsX1 , It really is an outstanding product
I am extremely pleased with the X1. The construction is well documented in terms of resilience. I would like to add that it is well designed and ergonomic in use.
I feel much more relaxed and secure leaving my bike when parked at home and abroad. Fixing through both discs and the wheel hub is ideal.
- SGShamus G.Verified BuyerWhat do you use the lock on? Commuter/City Bike, OtherWhat do you like about this lock? Great Quality, High Security, Portable, Made in Britain, Angle Grinder Resistance2 days agoWhat do you use the lock on? Commuter/City Bike, OtherWhat do you like about this lock? Great Quality, High Security, Portable, Made in Britain, Angle Grinder ResistanceReviewingLITELOK X1Rated 5 out of 5 starsPleasure to use
The design of the lock and tactical mount is excellent. There's no getting away from the heft of the lock (1.7kg) but when mounted it does not feel heavy and is super secure and doesn't rattle. The rubber protection, reflective stripes, lock cover all point to a well thought out product. Can now park my new gravel bike anywhere and feel it will be safe - thanks!
Recommended for commuting, shopping and visits to town etc, but if on a long road or gravel ride, or tour i would take something lighter maybe? Also realise that there are at least 2 mounting positions on the top tube which allows a bottle to fit as well.
- JWJeff W.Verified BuyerWhat do you use the lock on? ScooterWhat do you like about the lock? Great Quality, Angle Grinder Resistance, High Security, Portable, Made in Britain3 days agoWhat do you use the lock on? ScooterWhat do you like about the lock? Great Quality, Angle Grinder Resistance, High Security, Portable, Made in BritainReviewingLITELOK X1 MOTORated 5 out of 5 starsX1 Moto does the job!
Nothing but the best for my ADV350. So here is my new Litelok X1 Moto keeping it safe.
Just need one to secure the rear wheel. Just wish Litelok made a wider lock to fit over the tyre too. Maxiscooters are a target for thieves. Come on Litelok back to the CAD drawing board for Scooterlok X1.
- SVSunil V.Verified BuyerWhat do you use the lock on? Touring BikeWhat do you like about the lock? Great Quality, Lightweight, Portable3 days agoWhat do you use the lock on? Touring BikeWhat do you like about the lock? Great Quality, Lightweight, PortableReviewingLITELOK X1 MOTORated 5 out of 5 starsLightweight and easy to store
As the title says, it’s lightweight, durable and easy to carry it around and store under the seat of my motorcycle .
Saving up for my next litelok to improve my security!
- HOHazel O.Verified BuyerWhat do you use the lock on? OtherWhat do you like about the lock? Great Quality, Angle Grinder Resistance, Lightweight6 days agoWhat do you use the lock on? OtherWhat do you like about the lock? Great Quality, Angle Grinder Resistance, LightweightReviewingLITELOK X1 MOTORated 5 out of 5 starsSmall price to pay for peace of mind
Thanks so much for my litelok moto. I can now leave my bike and not constantly worry. Very impressed by the sleek design and soft coating. Will definitely purchase another.
- RPRennie P.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 Britain6 days agoWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Angle Grinder Resistance, High Security, Portable, Made in BritainReviewingLITELOK X1Rated 5 out of 5 starsPiece of mind
Knowing that motorcycle thieves are likely to forgo trying to steal my bike… due to a lock that will take several blades on an angle grinder to cut through, makes me less worried about it getting stolen.
Also having a lock with a soft coating means my paintwork is safe
- MDMateus d. O. T.Verified BuyerWhat do you use the lock on? E-BikeWhat do you like about this lock? Great Quality6 days agoWhat do you use the lock on? E-BikeWhat do you like about this lock? Great QualityReviewingLITELOK X1Rated 5 out of 5 starsSolid, heavy, a little too narrow
As the title says. Too narrow for an ebike, probably should've gone with the X1 Plus
- RFRon F.Verified BuyerWhat do you use the lock on? Touring BikeWhat do you like about the lock? Great Quality6 days agoWhat do you use the lock on? Touring BikeWhat do you like about the lock? Great QualityReviewingLITELOK X1 MOTORated 5 out of 5 starsExcellent Lock
Excellent lock with a great reputation. Perfect for my New Transalp through both front disks and wheel whilst offering damage protection too with their protective finish.
