LITELOK X1
★ Get 50% OFF the X1 Tactical Mount with every LITELOK X1 order. ★
Made in Britain
Built with Barronium®
Awarded World's Best Lock 2025
Anti-Angle Grinder
Accreditation
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.
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 Bike in New York City #75
We always love hearing from our riders—and recently, Arizona reached out to share a remarkable story about how their LITELOK X1 saved the day. “The bike was locked to a bike rack outside of the Wo...
LITELOK X1 Saves Bike in Manchester #72
On the evening of July 19, 2025, Benjamin was enjoying a night out in Manchester City Centre, having locked up his £530 bicycle securely to a public bike rack near a restaurant on Deansgate. Like m...
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 ...
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.
Armed 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.
- RDReynaldo D.Verified BuyerWhat do you use the lock on? Motorcycle, E-Bike, Road Bike, Mountain BikeWhat do you like about this lock? Great Quality, High Security, Angle Grinder ResistanceYesterdayWhat do you use the lock on? Motorcycle, E-Bike, Road Bike, Mountain BikeWhat do you like about this lock? Great Quality, High Security, Angle Grinder ResistanceReviewingLITELOK X1Rated 5 out of 5 starsLock it and forget it
The most secure lock in the market
- ELEmanuelis L.Verified BuyerWhat do you use the lock on? OtherWhat do you like about the lock? Great Quality, High Security, Angle Grinder ResistanceYesterdayWhat do you use the lock on? OtherWhat do you like about the lock? Great Quality, High Security, Angle Grinder ResistanceReviewingLITELOK X1 MOTORated 5 out of 5 starsGreat quality lock
Litelock x1, so far so good, the key lock system is smooth. Wouldn't leave my bike anywhere without litelok.
- AJAli J.Verified BuyerWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Angle Grinder Resistance, Lightweight, Portable, High Security2 days agoWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Angle Grinder Resistance, Lightweight, Portable, High SecurityReviewingLITELOK X1Rated 5 out of 5 starsGreat lock
Very sturdy and quality lock! Very easy to store and carry around too
- KMKai M.Verified BuyerWhat do you use the lock on? E-BikeWhat do you like about this lock? Great Quality, High Security, Portable, Made in Britain3 days agoWhat do you use the lock on? E-BikeWhat do you like about this lock? Great Quality, High Security, Portable, Made in BritainReviewingLITELOK X1Rated 5 out of 5 starsreally grwat
exactly what one needs
- DKDavid K. V.Verified BuyerWhat do you use the lock on? E-BikeWhat do you like about this lock? Great Quality, Angle Grinder Resistance, Portable3 days agoWhat do you use the lock on? E-BikeWhat do you like about this lock? Great Quality, Angle Grinder Resistance, PortableReviewingLITELOK X1Rated 5 out of 5 starsGreat lock for new e-bike
I needed a lock for my new e-bike, so researched all the options out there. This was the only lock that addressed a grinder attack in a reasonably portable package. I plan to add a rear rack and carry the lock there, but for now I’m using the tactical mount. Very pleased with the purchase so far.
- ABAlan B.Verified BuyerWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Portable, Made in Britain3 days agoWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Portable, Made in BritainReviewingLITELOK X1Rated 5 out of 5 starsAmazing piece of kit
Brought this after seeing a number of bikes being stolen and as now touring the UK, don’t want my bike to be another one that goes missing. As per the video I am using it on the rear wheel of my R1250GS, fits well through the rear hugger and wheel and making sure it’s not going anywhere, this along with a disk lock up front should make them think twice and leave my tractor alone.
So far it’s living up to the price and hype, just time will tell if it does the job and stops them in their tracks.
- JJJoel J.Verified BuyerWhat do you use the lock on? E-BikeWhat do you like about this lock? Great Quality, Angle Grinder Resistance, High Security3 days agoWhat do you use the lock on? E-BikeWhat do you like about this lock? Great Quality, Angle Grinder Resistance, High SecurityReviewingLITELOK X1Rated 5 out of 5 starsVery strong lock
I have used the lock three times so far, and my bike has not been stolen.
- TGTim G.Verified BuyerWhat do you use the lock on? Sports Bike, Touring BikeWhat do you like about the lock? Great Quality, Value for Money, High Security, Lightweight, Made in Britain4 days agoWhat do you use the lock on? Sports Bike, Touring BikeWhat do you like about the lock? Great Quality, Value for Money, High Security, Lightweight, Made in BritainReviewingLITELOK X1 MOTORated 5 out of 5 starsLock
Absolutely brilliant small compact and it did the job all the way to Morocco and back fitted in the in the top box, very small, brilliant product
- MMMR M. C.Verified BuyerWhat do you use the lock on? Touring BikeWhat do you like about the lock? Great Quality4 days agoWhat do you use the lock on? Touring BikeWhat do you like about the lock? Great QualityReviewingLITELOK X1 MOTORated 4 out of 5 starsGS SECURITY
The lock is well made looks the part , in my opinion think if it was 5 mm wider would of given it 5 star , with new tyres fitted to my bike little bit tight on front wheel rubbing on inner wheel rim ...
- HKHenri K.Verified BuyerWhat do you use the lock on? E-BikeWhat do you like about this lock? High Security, Angle Grinder Resistance, Great Quality5 days agoWhat do you use the lock on? E-BikeWhat do you like about this lock? High Security, Angle Grinder Resistance, Great QualityReviewingLITELOK X1Rated 5 out of 5 starsSuper bicycle lock!
After having had my e bike stolen I wanted to make sure that this won't happen again so I got two Litelok X1 locks. I'm really happy with the locks! Good size and not too heavy. Easy to handle. I usually only use one of them, but If I have to leave my bike over night somewhere I use the second one as well.
