LITELOK X1
Made in Britain
Built with Barronium®
Awarded World's Best Lock 2026
Anti-Angle Grinder
Accreditation
Great Lock
Lock exceeds expectations. Fits a fat tire e-bike easily. Very sturdy! Punches way above it's weight class price wise.
Mark P.
Heavy Duty
Love this thing. Heavy duty and gives me piece of mind when locking it up outside. It also comes with a pouch I use before storing it in my pannier bag.
Nelson O.
Best security to weight ratio hands down
These locks are legitimately impressive. Best security to weight ratio I could find. Happy with the quick shipping and size and performance so far.
Michael R.
What the experts say...
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
"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."
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."
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 San Francisco #104
In the early hours of a San Francisco morning, a cyclist’s $1600 bike faced an attempted theft. Despite the effort to break it free, the rider’s LITELOK held strong, proving the value of reliable b...
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 armored U-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.
Armored 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 U-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 armor 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®, our patented anti-angle grinder material that is applied as a permanently fused composite armor, 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 armor, 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.
- KBKamil B.Verified BuyerWhat do you use the lock on? E-ScooterWhat do you like about this lock? Great Quality, Angle Grinder Resistance, Lightweight, Value for Money, High SecurityYesterdayWhat do you use the lock on? E-ScooterWhat do you like about this lock? Great Quality, Angle Grinder Resistance, Lightweight, Value for Money, High SecurityRated 5 out of 5 starsLitelok X1 Fantastic piece of art!
I just bought Litelok X1 couple of days ago. Very happy with the purchase!! Seems to be very solid and quality product! Highly recommend to every one!
- BHBob H.Verified BuyerWhat do you use the lock on? E-Bike, MotorcycleWhat do you like about this lock? Great Quality, Angle Grinder Resistance, High Security, Made in Britain, Portable2 days agoWhat do you use the lock on? E-Bike, MotorcycleWhat do you like about this lock? Great Quality, Angle Grinder Resistance, High Security, Made in Britain, PortableRated 5 out of 5 starsSolid security
I bought this to protect my e-bike and motorcycle when I’m out and about. In fact I use it as extra security when they are in the garage too. The X1 is solid and feels up market. Obviously the proof of how good it is will be when someone tries to get it off. I’m not planning on that happening but you know what I mean.
I’m just about to order an X1 plus too.
- ICIsabella C.Verified BuyerWhat do you use the lock on? Commuter/City BikeWhat do you like about this lock? Great Quality2 days agoWhat do you use the lock on? Commuter/City BikeWhat do you like about this lock? Great QualityRated 5 out of 5 starsExcellent and Substantial U-Lock, a Little Tricky For My Small-Frame Step-Through Bicycle
This is an undeniably stable and secure U-Lock and gives me confidence when locking up my bike around Baltimore City. I love the high-vis reflectors and the smoothness of the turnkey lock. My only critique is that the U-shape is particularly narrow and proves challenging to loop around the front tire and frame when locking up on bike racks. I have a small frame step-through bicycle with quick release wheels, so attaching to both the wheel AND frame is essential. I'd love to see an extra wide option available one day for people with similar frames. :)
- TTTyler T.Verified BuyerWhat do you use the lock on? E-Bike, Commuter/City BikeWhat do you like about this lock? Great Quality, Value for Money, High Security, Portable2 days agoWhat do you use the lock on? E-Bike, Commuter/City BikeWhat do you like about this lock? Great Quality, Value for Money, High Security, PortableRated 5 out of 5 starsGreat design and a very good security
Love the subtle looks and design of the lock. It’s not too “in your face”, its subtle design is recognizable comparatively to a traditional u-lock/d-lock, but just enough to show the litelok flare. Very good secrurity and reliable.
- MMMichael M.Verified BuyerWhat do you use the lock on? E-BikeWhat do you like about this lock? Great Quality, Value for Money, Angle Grinder Resistance6 days agoWhat do you use the lock on? E-BikeWhat do you like about this lock? Great Quality, Value for Money, Angle Grinder ResistanceRated 5 out of 5 starsHigh Quality Lock Provides Peace of Mind
Excellent lock with just enough room to use on most locking posts. I bought this lock (and the tactical mount) for my partner’s ebike to give us peace of mind when we’re out on rides. I have a Hiplok for my own bike, but it is not as spacious as the Litelok. The little extra room that this Litelok has makes it more usable on bigger locking posts. I prefer to use the Sheldon Brown method when locking my bikes, so this has plenty of room for securing the back wheel. Sure it’s pricey, but compared to other grinder resistant locks it’s one of the more affordable options. I highly recommend the Litelok, however the tactical mount is pretty tedious to use, particularly on a step through frame. Velcro straps on a rack are more user friendly mounting options.
- ARAdrian R.Verified BuyerWhat do you use the lock on? MotorcycleWhat do you like about this lock? Made in Britain2 weeks agoWhat do you use the lock on? MotorcycleWhat do you like about this lock? Made in BritainRated 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 Britain2 weeks 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 BritainRated 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 Britain2 weeks agoWhat do you use the lock on? E-ScooterWhat do you like about this lock? Great Quality, Angle Grinder Resistance, High Security, Made in BritainRated 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!
- JJohnVerified ReviewerWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Angle Grinder Resistance, High Security, Portable, Lightweight3 weeks agoWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Angle Grinder Resistance, High Security, Portable, LightweightRated 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.
- BDBartek D.Verified BuyerWhat do you use the lock on? E-BikeWhat do you like about this lock? Value for Money, Great Quality, Angle Grinder Resistance3 weeks agoWhat do you use the lock on? E-BikeWhat do you like about this lock? Value for Money, Great Quality, Angle Grinder ResistanceRated 5 out of 5 starsThe best!!!
Best lock you can buy! Heavy but highway recommended
