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 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.
- DPdaniel P.Verified BuyerWhat do you use the lock on? Touring BikeWhat do you like about the lock? Angle Grinder Resistance, High Security, Great Quality, Portable, Made in Britain3 hours agoWhat do you use the lock on? Touring BikeWhat do you like about the lock? Angle Grinder Resistance, High Security, Great Quality, Portable, Made in BritainReviewingLITELOK X1 MOTORated 5 out of 5 starsLitelock
Nice bit of kit these locks you have a sense that your bike is a lot more secure when using this lock very happy with mine cheers
- ARAdrian R.Verified BuyerWhat do you use the lock on? MotorcycleWhat do you like about this lock? Made in Britain3 hours agoWhat do you use the lock on? MotorcycleWhat do you like about this lock? Made in BritainReviewingLITELOK X1Rated 4 out of 5 starsLet's hope its never tested !
Hard to make a review, the lock feels like good quality and considering the cost i would hope its the best. Until someone attempts to remove it forcefully I can't say much more. Other than its very heavy, which is the only downside to date.
- SMStephen M.Verified BuyerWhat do you use the lock on? E-BikeWhat do you like about this lock? Angle Grinder Resistance, Great Quality, High Security, Portable, Made in Britain4 hours agoWhat do you use the lock on? E-BikeWhat do you like about this lock? Angle Grinder Resistance, Great Quality, High Security, Portable, Made in BritainReviewingLITELOK X1Rated 5 out of 5 starsExcellent customer service
Received my lock exerllant product but I forgot to add the bracket so emailed LITELOK and they sent it out straight away for the £12 advertised price exerllant customer service had a problem as to where to mount it on my hitway bk6s pro folding bike but finally sorted it
- JPJon P.Verified BuyerWhat do you use the lock on? E-ScooterWhat do you like about this lock? Great Quality, Angle Grinder Resistance, High Security, Made in Britain7 hours agoWhat do you use the lock on? E-ScooterWhat do you like about this lock? Great Quality, Angle Grinder Resistance, High Security, Made in BritainReviewingLITELOK X1Rated 5 out of 5 starsEasily one of the best locks you can buy
Amazing locks. The angle grinder resistance is an absolute must especially here in London. So glad these exist. Great job, guys! 🙌👏 🙏 Highly recommend!
- MRMr R. M.Verified BuyerWhat do you use the lock on? Touring BikeWhat do you like about the lock? Great Quality, Angle Grinder Resistance, High Security, Made in BritainYesterdayWhat do you use the lock on? Touring BikeWhat do you like about the lock? Great Quality, Angle Grinder Resistance, High Security, Made in BritainReviewingLITELOK X1 MOTORated 5 out of 5 starsReassurance
When touring it always a worry to leave my motorcycle in car parks. I was carrying a minimum of two locks and a chain around.
Now I have the X1 Moto I am reassured that I have taken appropriate action to stop my bike being stolen.
Compact and very strong and considering buying another for the rear wheel.
- JKJohn K.Verified BuyerWhat do you use the lock on? Touring BikeWhat do you like about the lock? Great Quality, Angle Grinder Resistance, High SecurityYesterdayWhat do you use the lock on? Touring BikeWhat do you like about the lock? Great Quality, Angle Grinder Resistance, High SecurityReviewingLITELOK X1 MOTORated 5 out of 5 starsLitelock X1 Moto
After recent break in and and failed attempt to steal my bike I have now piece of mind. Feels uniquely sturdy and will be a fantastic deterrent.
- GRGary R.Verified BuyerWhat do you use the lock on? Touring Bike, CruiserWhat do you like about the lock? Great Quality, Angle Grinder Resistance, High SecurityYesterdayWhat do you use the lock on? Touring Bike, CruiserWhat do you like about the lock? Great Quality, Angle Grinder Resistance, High SecurityReviewingLITELOK X1 MOTORated 5 out of 5 starsI hope I never have to see how theft proof it is
By that, I mean I really hope nobody ever tries to nick my bike so we can find out just how theft-proof it is.
What I can say is that everything up to that point has been excellent. It feels seriously solid, really well made, and like it could survive just about anything. Getting it on and off the bike is straightforward, locking and unlocking is quick and easy, and it doesn’t feel like a chore to use.
So far, the only thing it’s stolen is a bit more money from my bank account than some other locks… but if it keeps my bike where I left it, I’ll call that money well spent.
- JBJohn B.Verified BuyerWhat do you use the lock on? Touring BikeWhat do you like about the lock? Angle Grinder Resistance, Great Quality, High Security, Portable, Value for MoneyYesterdayWhat do you use the lock on? Touring BikeWhat do you like about the lock? Angle Grinder Resistance, Great Quality, High Security, Portable, Value for MoneyReviewingLITELOK X1 MOTORated 5 out of 5 starsExceptional
This is an exceptional product and gives me the confidence to know that my prized possession will be as safe as it can be when left on its own.
- JJohnVerified ReviewerWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Angle Grinder Resistance, High Security, Portable, Lightweight2 days agoWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Angle Grinder Resistance, High Security, Portable, LightweightReviewingLITELOK X1Rated 5 out of 5 starsQuality Lock
I decided to invest in a quality lock. After reviewing many locks in a similar price range I decided that the X1 was the one that I wanted. My purchase was not impulsive, I looked at many, checking out independent testing videos and reviews. The lock has a quality look and feel. It’s another layer to my Bike security, it’s without doubt the strongest link. I have had a van stolen and I do not want to have that feeling again. I might appear to be OCD about security, but that theft feeling is horrendous, I’m determined that it wont happen again. Layer up, and layer up again. Great product, highly recommend.
- MPMartin P.Verified BuyerWhat do you use the lock on? OtherWhat do you like about the lock? Great Quality, Value for Money, Angle Grinder Resistance, High Security, Portable2 days agoWhat do you use the lock on? OtherWhat do you like about the lock? Great Quality, Value for Money, Angle Grinder Resistance, High Security, PortableReviewingLITELOK X1 MOTORated 5 out of 5 starsExcellent get one
Best lock I’ve used in years of riding, with all the bike theft going on this is a must, I’ve got it on my Honda 1200 vfr crosstourer, it feels secure and looks secure,
