LITELOK X1
Great security lock - Highly recommended
"Great lock for your e-bike! It’s highly secure and extremely lighter compared to the competition, very user friendly for commutes. I’m very happy with the purchase so far, and still got my e-bike with me: I guess it’s a great deterrent for thieves."
Davide L.
Great Lock
"This is a brilliant, well considered product. The lock is very light for its type and is beautifully constructed. Overall, very happy with the purchase - highly recommended!"
Mehrdad M.
Loved it so much I bought another one
"Bought one of these as had two bikes stolen from work even with a D lock. This feels genuinely more chunky and leaves less space (but enough) on racks to secure. As I live in a high theft zone I then decided to buy another one for a family member as I was so impressed."
Helen H.
Made in Britain
Built with Barronium®
Awarded World's Best Lock 2026
Anti-Angle Grinder
Accreditation
Tried & Tested by Independent Experts
Josh Patterson, The Guardian
"The Litelok X1 is the best overall bike lock we tested. It balances real-world grinder resistance with everyday usability and it is relatively low-weight. This makes it ideal for e-bike riders, daily commuters and anyone locking up in theft-prone areas."
Ryan Winiata, wired.com
"Litelok’s trusty X1 offers serious security and impressive versatility for a wide range of users, bikes, and racks. As an angle-grinder-resistant U-lock, the X1’s security scores are among the highest available."
Carl Ellis, thebestbikelock.com
"The best all round bike lock in 2025 is still the Litelok X1. This is because it’s the anti-angle grinder bike lock that provides the best balance between security, practicality and price, for those cyclists that need a higher level of protection."
Jeremy Benson, GearJunkie
"The LITELOK X1 masterfully balances security, price, and performance. In addition to having a slightly larger locking area than most angle grinder-resistant locks, it’s among the lightest and easiest on the wallet."
Mike Stead, road.cc
"The Litelok X1 is one of the lightest Diamond-rated D-locks around. Even more impressive is that for the 1.7kg weight it's a full-size lock with large internal locking dimensions. And it was the cheapest lock to survive our angle grinder test by a long way."
Warren Rossiter, Bike Radar
"The best-value angle-grinder resistant lock we’ve ever tested. When I tried to cut it with an angle grinder, it took 4min 38secs (including disc changes) to cut through one side of the X1’s shackle, which exceeds its premium rivals and the Sold Secure Powered Cycle Diamond rating."
Success Stories
LITELOK X1 Saves Cowboy Bikes in London #47
On November 1st in London, the LITELOK X1 successfully protected two Cowboy e-bikes from an attempted theft involving an angle grinder. Roman shared with us how the lock thwarted the theft, saving ...
LITELOK X1 Saves E-Mountain Bike in Edinburgh #108
Emma’s E-mountain bike in Edinburgh was the target of an attempted theft, but thanks to her LITELOK and other security devices, the bike stayed safe. Her story shows why a multi-layered security ap...
LITELOK X1 Saves E-Bike in Manchester #87
When thieves broke into Mitch’s Manchester apartment block and targeted his £1850 e-bike, they came prepared. They cut into the bike locker, spun his 36kg bike around, and tried everything they cou...
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
Easy to Carry
X1 is compatible with our innovative X1 tactical Mount and Twist & Go Mount which means you can attach the lock to your frame with ease. Both mounts are sold separately.
Armoured with Barronium®
Barronium® fused composite armour repels angle grinder attacks and eats angle grinder discs.
LITELOK X1
Tested to Destruction
Tested against the best-selling 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.
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 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 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.
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 LITELOK X1 made from?
LITELOK X1 is built with Barronium®, a patent-pending 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.
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.
- BDBadis D.Verified BuyerWhat do you use the lock on? ScooterWhat do you like about the lock? Great Quality3 hours agoWhat do you use the lock on? ScooterWhat do you like about the lock? Great QualityReviewingLITELOK X1 MOTORated 5 out of 5 starsLitlock x1
Very strong and cool fitting on Yamaha nmax
- JWJohn W.Verified BuyerWhat do you use the lock on? Scooter, OtherWhat do you like about the lock? Angle Grinder Resistance, Made in Britain, Lightweight, High Security, Great Quality3 days agoWhat do you use the lock on? Scooter, OtherWhat do you like about the lock? Angle Grinder Resistance, Made in Britain, Lightweight, High Security, Great QualityReviewingLITELOK X1 MOTORated 5 out of 5 starsPeace of mind - Daughters 1st M/B
Fantastic product, comes with a case.
Lighter than I thought, makes easier for daughter to carry. Takes a min to work out best way to put on but once figured out, on/off in no time.
I can put around spokes in wheel or around one spoke then swing arm. Congratulations Litelok for designing something that gives peace of mind. 👍
- HTHussein T.Verified BuyerWhat do you use the lock on? E-BikeWhat do you like about this lock? Great Quality, High Security4 days agoWhat do you use the lock on? E-BikeWhat do you like about this lock? Great Quality, High SecurityReviewingLITELOK X1Rated 5 out of 5 starsNice and solid product
I use the Litelok X1 (Bike-Version) to secure my Lemmo-e-bike where it does a really good job.
I bought it with the X1 Tactical Mount that keeps the lock in its place and out of the way when driving with the bike. The lock makes a good impression and I'm not afraid to leave my bike alone as long at is locked like this.
- IPInprasith P.Verified BuyerWhat do you use the lock on? Cargo BikeWhat do you like about this lock? Great Quality, Portable1 week agoWhat do you use the lock on? Cargo BikeWhat do you like about this lock? Great Quality, PortableReviewingLITELOK X1Rated 5 out of 5 starsLitelok X1 : l'antivol vélo ultra pratique et incassable !
J'ai testé le Litelok X1 pendant un an avec mon Jean Fourche 2 et mes sacoches de vélo cargo, et franchement, c'est un super antivol qui répond parfaitement à mes besoins quotidiens.
Utilisation pratique
On l'attache en deux secondes sur les sacoches : tu passes l'anse autour, hop, et c'est verrouillé. La petite protection en plastique sur l'ouverture protège super bien de la poussière et des chocs, et comme il est ni trop petit ni trop grand (circonférence d'environ 101 x 196 mm), il s'adapte partout, poteaux, racks, même avec des cadres épais. Avec mes sacoches chargées, il reste stable et ne bouge pas.
Solidité et poids
À 1,7 kg, il est léger pour un U aussi costaud, Le Tactical Mount, support de transport est pratique pour le fixer au cadre, et il rentre même dans un sac à dos sans problème.
Verdict final
Super content, il est pratique au quotidien, et le prix est correct pour cette qualité.
Parfait pour moi qui bouget beaucoup à vélo à Lyon. Je le recommande les yeux fermés !
- GLGary L.Verified BuyerWhat do you use the lock on? OtherWhat do you like about the lock? Angle Grinder Resistance1 week agoWhat do you use the lock on? OtherWhat do you like about the lock? Angle Grinder ResistanceReviewingLITELOK X1 MOTORated 4 out of 5 starsSeems to do as expected
I bought this as an extra layer of security and it seems to do the trick. My only cons would be it is slightly too narrow to fit over the front tyre so you have to jiggle it a bit but too thick to go through the brake disc. Easy to put in a back pack or strap to the seat.
- RJRhys J. H.Verified ReviewerWhat do you use the lock on? Sports BikeWhat do you like about the lock? Great Quality, Angle Grinder Resistance, High Security, Portable1 week agoWhat do you use the lock on? Sports BikeWhat do you like about the lock? Great Quality, Angle Grinder Resistance, High Security, PortableReviewingLITELOK X1 MOTORated 5 out of 5 starsA must have!
I needed this lock to secure my bike when it was stationary , the size is perfect and sturdy!
- CHCarolyne H.Verified BuyerWhat do you use the lock on? Touring BikeWhat do you like about the lock? Great Quality, Value for Money, Angle Grinder Resistance, Portable1 week agoWhat do you use the lock on? Touring BikeWhat do you like about the lock? Great Quality, Value for Money, Angle Grinder Resistance, PortableReviewingLITELOK X1 MOTORated 5 out of 5 starsLitelok x1 moto
Bought this lock as I had seen many reviews online and you tube videos showing how effective this lock is at protecting motorbikes and I’m pretty keen on keeping my bike. I had research various locks but this came up trumps
- RMRobert M.Verified BuyerWhat do you use the lock on? Sports BikeWhat do you like about the lock? Great Quality, Value for Money, Angle Grinder Resistance, Portable, High Security1 week agoWhat do you use the lock on? Sports BikeWhat do you like about the lock? Great Quality, Value for Money, Angle Grinder Resistance, Portable, High SecurityReviewingLITELOK X1 MOTORated 5 out of 5 starsGreat D lock
Well made and impressively tough. Worth the money for peace of mind. Will certainly slow thieves down. Fits the front wheel of my ZRX Kawasaki and stores under the seat and doesn't rattle thanks to the included cover/case.
- JHJoe H.Verified BuyerWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Angle Grinder Resistance, High Security, Made in Britain1 week agoWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Angle Grinder Resistance, High Security, Made in BritainReviewingLITELOK X1Rated 5 out of 5 starsPeace of mind
Fantastic lock that goes through both discs and wheel of my Voge 800 , the neoprene pouch stops any damage to my top case easy to use for a secured motorcycle
- SHSteven H.Verified BuyerWhat do you use the lock on? Commuter/City Bike, Road BikeWhat do you like about this lock? Great Quality, Angle Grinder Resistance, High Security, Portable, Made in Britain1 week agoWhat do you use the lock on? Commuter/City Bike, Road BikeWhat do you like about this lock? Great Quality, Angle Grinder Resistance, High Security, Portable, Made in BritainReviewingLITELOK X1Rated 5 out of 5 starsSolid lock for London riding
I bought the Litelok X1 mainly for riding in London where bike theft is a constant concern, and it’s made a big difference to how confident I feel locking up. The build quality is excellent, it feels very solid without being overly heavy like some high-security locks.
It’s a good balance between security and practicality. I can lock the frame and rear wheel to a fixed object without struggling, which is exactly what I need for day-to-day use. It’s also compact enough that I don’t mind carrying it on rides.
Overall, it does exactly what I wanted, gives proper peace of mind without being a hassle to use. Definitely worth it if you’re locking up in a city.
