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.
- BGBrad G.Verified BuyerWhat do you use the lock on? Scooter, OtherWhat do you like about the lock? Made in Britain, Great Quality, Angle Grinder Resistance, Portable7 hours agoWhat do you use the lock on? Scooter, OtherWhat do you like about the lock? Made in Britain, Great Quality, Angle Grinder Resistance, PortableReviewingLITELOK X1 MOTORated 5 out of 5 starsQuality Item
Recently purchased my X1 for my Honda ADV 350. It fits over the front tyre and between the spokes on the front and rear wheel. You can just tell it’s a quality item with the way it looks and operates. It was well packaged and delivered next day. It would be nice if Litelok supplied a reminder cable. The one in the photo is from an old disc lock.
- KGKen G.Verified BuyerWhat do you use the lock on? Touring BikeWhat do you like about the lock? Great Quality, Angle Grinder Resistance, Portable, High Security, Value for Money21 hours agoWhat do you use the lock on? Touring BikeWhat do you like about the lock? Great Quality, Angle Grinder Resistance, Portable, High Security, Value for MoneyReviewingLITELOK X1 MOTORated 5 out of 5 starsStrong and sturdy
The Litelok X1 is an ideal security addition for my BMW900XR. It easily fits into a top box or pannier and comes in a protective neoprene case, which protects the bike from damage during storage.
The first thing you will notice is the reassuring weight, a very sturdy and solid piece of kit. Great security for any bike, thieves will not like it.
- TPTONY P.Verified BuyerWhat do you use the lock on? E-Bike, Mountain Bike, E-ScooterWhat do you like about this lock? Angle Grinder Resistance, High Security, Great QualityYesterdayWhat do you use the lock on? E-Bike, Mountain Bike, E-ScooterWhat do you like about this lock? Angle Grinder Resistance, High Security, Great QualityReviewingLITELOK X1Rated 5 out of 5 starsSuperlock
Almost indestructible Ulock, happy with my purchased, I highly recommend to anyone who wants something solid and secure. Best in Ulock.
- PTPhilip T.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, Lightweight3 days 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 starsTaken the plunge x1 moto
Very happy with X1 moto, great build standard and fits front wheel of BMW 1250GSA well, hopefully never have to have it tested, but piece of mind, many thanks
- MRMark R.Verified BuyerWhat do you use the lock on? Road BikeWhat do you like about this lock? Angle Grinder Resistance, High Security3 days agoWhat do you use the lock on? Road BikeWhat do you like about this lock? Angle Grinder Resistance, High SecurityReviewingLITELOK X1Rated 4 out of 5 starsSolid lock
Haven't had anyone try and go at it with a grinder yet! but seems to do the job on my Condor in tandem with a cheaper Kriptonite on the front wheel. Would recommend.
- EFEmile F.Verified BuyerWhat do you use the lock on? E-BikeWhat do you like about this lock? Great Quality, Value for Money, Angle Grinder Resistance, Lightweight, High Security4 days agoWhat do you use the lock on? E-BikeWhat do you like about this lock? Great Quality, Value for Money, Angle Grinder Resistance, Lightweight, High SecurityReviewingLITELOK X1Rated 5 out of 5 starsLitelok X1
J’ai fait l’acquisition de ce cadenas afin de garantir un maximum la sécurité de mon nouveau vélo (Le Petit Porteur longtail). Je cherchais quelque chose de très solide et de pas trop cher et je trouve que ce modèle est un bon compromis entre un cadenas en U d’une autre grande marque et la version la plus coûteuse (et sécurisante) de Litelok. Je dois dire que les stickers réfléchissants sur le cadenas sont un plus non négligeable ainsi que la housse en néoprène qui permet de bien le protéger. Je trouve aussi que le prix est plutôt raisonnable. Je croise les doigts pour qu’il ne soit jamais soumis à une tentative de vol!
- JMJonathan M.Verified BuyerWhat do you use the lock on? Sports BikeWhat do you like about the lock? Great Quality, Angle Grinder Resistance, High Security5 days agoWhat do you use the lock on? Sports BikeWhat do you like about the lock? Great Quality, Angle Grinder Resistance, High SecurityReviewingLITELOK X1 MOTORated 5 out of 5 starsLitelock X1
“So, this is the Litelock X1 — and honestly, from the moment you open the box, you can tell it’s a premium bit of kit. Even the packaging gives that solid, high-end feel.
Straight away, the weight stands out — it’s not light, but that’s actually reassuring. It feels properly built, like it’s going to do its job if anyone tries their luck.
You also get a really nice bonus — a free carry case included in the box, which makes storing or carrying it around that bit easier.
When it comes to fitting, it’s super versatile — you can lock it directly around the wheel itself, or through the spokes and disc, depending on what you prefer. Either way, it sits snug and secure.
Overall, the Litelock X1 feels like a seriously well-made, premium security lock that gives you a lot of confidence in your bike’s safety.”
- STSteven T.Verified BuyerWhat do you use the lock on? E-Bike, Mountain BikeWhat do you like about this lock? Great Quality, Value for Money, Angle Grinder Resistance, Made in Britain, High Security6 days agoWhat do you use the lock on? E-Bike, Mountain BikeWhat do you like about this lock? Great Quality, Value for Money, Angle Grinder Resistance, Made in Britain, High SecurityReviewingLITELOK X1Rated 5 out of 5 starsGreat deterrent for an electric cycle
Checked a lot of online reviews and the Litelok X1 was consistently a top performer balancing strength with price. Was slightly concerned that my electric bike, Mirider 20, would be too big for this D lock but have found a number of ways to secure the bike with this style lock. Looking forward to cycling without the worry of losing my new bike to any but a very determined thief with multiple discs for an angle grinder!
- RSRichard S.Verified BuyerWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Angle Grinder Resistance, Lightweight, 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, Lightweight, High Security, Made in BritainReviewingLITELOK X1Rated 5 out of 5 starsGreat light weight but tough lock
I already had a lock but was worried that it was not upto securing my new bike. The litelok is very light and knowing it can withstand a sustained attack from an angle grinder is reassuring. Just fits the tyre and rim of my ADV350. A very happy customer
- BJBenjamin J.Verified BuyerWhat do you use the lock on? OtherWhat do you like about the lock? Great Quality, Angle Grinder Resistance, Lightweight, Portable, Made in Britain1 week agoWhat do you use the lock on? OtherWhat do you like about the lock? Great Quality, Angle Grinder Resistance, Lightweight, Portable, Made in BritainReviewingLITELOK X1 MOTORated 5 out of 5 starsLitelok X1 review
Very lightweight, extremely portable and fits perfect around the spoke and through the sprocket of my MT03-660- will be buying more when I get another bike!
