LITELOK X1
SPRING DEALWe're giving you $15 off the award-winning LITELOK X1 in our Spring Deals Event!
Plus get 50% OFF the X1 Tactical Mount with every X1 order by using code HALFOFFX1MOUNT at checkout.
BE QUICK - ALL OFFERS END ON 31ST MAY!
Made in Britain
Built with Barronium®
Awarded World's Best Lock 2024
Anti-Angle Grinder
Accreditation
What the experts say...
Warren Rossiter, Bike Radar
"...armoured with a composite material called Barronium®, resisted the attack of our angle grinder for more than 17 minutes, That's almost three times longer than the previous toughest lock we've tested."
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."
Carl Ellis, thebestbikelock.com
"It’s definitely the most secure bike lock I’ve ever tested. And that it manages this without being excessively heavy, bulky, massively expensive or incredibly unpractical, is indeed a BIG DEAL!"
Josh Ross, Cycling News
"Litelok doesn't claim the X1 is angle grinder proof, and it's not, but it takes two cuts to free a bike and a single cut will trash a grinder disc. That's enough security for most bikes in most situations and it comes without tradeoffs in price and useability."
Rob Clymo, T3
"A quality lock such as this one is a huge hurdle for cycle thieves and could well put them off having a go altogether. In that respect, the Litelok X1 seems like a bit of a bargain, especially if your ride has cost you thhousands to buy in the first place."
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 Bike in New York #40
Willy, a dedicated Uber Eats delivery rider in Manhattan, relies on his Arrow e-bike for work. In a city where bike theft is rampant—especially with highly sought-after models like the Arrow—Willy ...
LITELOK X1 Saves Bike in Minnesota #39
Steven, a cyclist from Minneapolis, Minnesota, recently shared how the LITELOK X1 saved his $2,600 bike from being stolen. "The bike was locked to a wall-mounted rack, and no other lock was used,...
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 (both sold separately) mount which means you can attach the lock to your frame with ease.
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 U-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.
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.
- DLDavide L.Verified BuyerWhat do you use the lock on? E-BikeWhat do you like about this lock? Great Quality, Angle Grinder Resistance, Portable, Lightweight1 hour agoWhat do you use the lock on? E-BikeWhat do you like about this lock? Great Quality, Angle Grinder Resistance, Portable, LightweightRated 5 out of 5 starsGreat 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 thiefs.
- AHAndreas H.Verified BuyerWhat do you use the lock on? Communter/City BikeWhat do you like about this lock? Great Quality, Angle Grinder Resistance, Portable, Made in Britain21 hours agoWhat do you use the lock on? Communter/City BikeWhat do you like about this lock? Great Quality, Angle Grinder Resistance, Portable, Made in BritainRated 5 out of 5 starsAmazingly competent, scratch-friendly and secure (with ridiculously labeled accessories).
What a great lock!
I bought my Litelok little over a month ago, together with the Tactical Mount (listen guys, your names... it sounds like I eat M16's for breakfast attend gun trade shows).
The lock is coated in a rubbery and smooth surface, that so far is both friendly to the bike paint (no dings), and easy to grab firmly (for when you scoop down to an inch above the pavement to secure your bike to that 8 tonne tungsten ring in the ground that you just found on a rainy day).
I was worried that the length of the lock would be too short to be able to wrap around my bike frame and still reach around the sturdy poles you're meant to find around town but it's no worries at all. It's long enough, and still not too long - meaning it does not interfere with the bike frame when mounted with the ... the... darn, I have to say it again .. with the Tactical Mount. (seriously, just call it a Bike Mount, that way I'm not forced to wear camouflage underwear).
The weight is not more than any other sturdy (and less angle grider resistant) locks as far as I know, and way less than the huge chains I see some communters dragging behind them. So that's a plus too.
If there's anything that I find a bit finnicky (and this is a minor, and incorrectly spelled, issue) it's that I sometimes need a few tries to get the key into the lock as it's very narrow. This has nothing to do with alcohol, I must add. It's just that it takes practice.
Oh, and a final note: if you don't go for the tac...…
- DCDavid C.Verified BuyerWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Angle Grinder Resistance, High SecurityYesterdayWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Angle Grinder Resistance, High SecurityRated 5 out of 5 starsGSA security
My wife and I both ride a GSA each. We tour a lot and want to visit cities as well as countryside. We decided to upgrade our security with an X1 each. We managed to link them together to double our security.
- ASAlison S.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 Britain2 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 BritainRated 5 out of 5 starsPerfect solution to security
We watched the video clips on how these locks resist angle grinders and decided they would be the ideal to improve our security.
- MSMashud S.Verified BuyerWhat do you use the lock on? E-BikeWhat do you like about this lock? Great Quality, High Security2 days agoWhat do you use the lock on? E-BikeWhat do you like about this lock? Great Quality, High SecurityRated 5 out of 5 starsGreat lock
Purchased this after reading and watching a number of reviews.
The lock is heavy duty, feels super solid, giving me confidence it will do the job. Hopefully I will never have to find out. Comes with a nice cover.
The lock was delivered quickly and well packaged.
Yes it's more expensive than normal U locks but I think it's worth the extra, especially if you're already spending £100s/£1000s on a bike. Protect your investment.
Alongside this I purchased the X1 tactical mount. Made sense as I would need to carry it with me when needed.
- JMJeff M.Verified BuyerWhat do you use the lock on? E-Bike, Road BikeWhat do you like about this lock? Great Quality, Angle Grinder Resistance, Portable2 days agoWhat do you use the lock on? E-Bike, Road BikeWhat do you like about this lock? Great Quality, Angle Grinder Resistance, PortableRated 5 out of 5 starsSolid lock, not too heavy, loving the sense of security!
It’s a solid lock and i also like that the outer coating is somewhat soft (and doesn’t feel like it’s going to scratch my paint).
The locking/release mechanism was a little sticky/finnicky at first. I’m not sure if it just worked itself out or if i got used to it, but it’s fine now.
A+++ very happy with the purchase.
- BCBartosz C.Verified BuyerWhat do you use the lock on? Mountain BikeWhat do you like about this lock? Great Quality, Portable, High Security, Lightweight3 days agoWhat do you use the lock on? Mountain BikeWhat do you like about this lock? Great Quality, Portable, High Security, LightweightRated 5 out of 5 starsExceptional Security - The Best Bike Lock Available
The LiteLok X1 is hands down the best bike lock on the market today. With its revolutionary Barronium® technology, this lock provides unmatched security that's at least 5 times more resistant to angle grinder attacks than any other D-lock. The Sold Secure Diamond rating (the highest possible certification) confirms its superior protection against even the most determined thieves. At just 1.7kg, it perfectly balances incredible security with practical everyday use. If you want the ultimate peace of mind for your bike, the LiteLok X1 is the only choice that truly delivers world-class protection.
- MMMehrdad M.Verified BuyerWhat do you use the lock on? Commuter/City BikeWhat do you like about this lock? Angle Grinder Resistance, Lightweight, Made in Britain3 days agoWhat do you use the lock on? Commuter/City BikeWhat do you like about this lock? Angle Grinder Resistance, Lightweight, Made in BritainRated 5 out of 5 starsGreat Lock
This is a brilliant, well considered product. The lock is very light for its type and is beautifully constructed.
My favorite feature might be that it is rubber-coated to avoid scratches. The mount is also well-considered, easy to assemble and, overall, a great option for stowing the lock. Overall, very happy with the purchase - highly recommended!
- HTHakan T.Verified BuyerWhat do you use the lock on? E-Bike, Communter/City BikeWhat do you like about this lock? Great Quality, Value for Money, Angle Grinder Resistance, Portable, High Security4 days agoWhat do you use the lock on? E-Bike, Communter/City BikeWhat do you like about this lock? Great Quality, Value for Money, Angle Grinder Resistance, Portable, High SecurityRated 5 out of 5 starsMade for 2025
After using the Litelok X1 for several months cycling around Amsterdam, I can say it’s genuinely changed how I think about bike commuting. The simple truth is: if you can’t park your bike confidently, you won’t be using it.
The locking mechanism feels solid and reliable. What I particularly appreciate is how smoothly it operates: both locking and unlocking happen quickly, which matters when you’re dealing with unpredictable weather or just want to get moving. The soft outer coating is a nice touch that’s prevented any scratches on my bike frame, something I’ve had issues with using cheaper locks in the past.
The design has this industrial look that I quite like, though I can see how it might not suit everyone’s taste or every type of bike
I’d strongly recommend getting the tactical mount they sell separately. The design is genuinely clever and makes carrying the lock much more convenient. However, this is where my main frustration lies.
I’ve knocked off a star specifically because of the mount installation. The instruction video is quite poor, confusing sequence, unclear angles, and overall just not helpful. What should have been straightforward took me far longer than necessary. For a premium product like this, the setup guidance should be much better.
Overall despite the installation headache, this has become my go-to lock. The security feels solid, the build quality is there, and it represents decent value considering you’re likely to use it for years.
Would I…
- PWPercy W.Verified BuyerWhat do you use the lock on? E-Bike, OtherWhat do you like about this lock? Angle Grinder Resistance, Great Quality, Portable, High Security1 week agoWhat do you use the lock on? E-Bike, OtherWhat do you like about this lock? Angle Grinder Resistance, Great Quality, Portable, High SecurityRated 5 out of 5 starsGreat and sturdy lock!
The ART4 lock looks very cool with the reflector stripes on it and feels very save sturdy. I use it on my fat tyre E-bike in combination with an ART4 chain, a bicycle alarm and a smart tracker. It doesn't get safer and more deterrent than this combination.
Litelok X1 opens and closes like a charm with the given two keys which you can register with Litelok. For extra security I will lock the bike twice to the fixed world whenever possible. When delivered the packaging looks very professional, but it’s a pity that the bracket clamp is no longer included.
Would like to see the faces of the angle grinder thieves when they put up a match with Litelok X1 though.. 😎
