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.
Serious about security?
Every X-range lock already takes two full cuts to defeat. Add a second lock on a different point and you double the work — which is usually where a thief decides it's not worth it.
The Essential Kit
- 1Your X1 already takes two full cuts to defeat, through Barronium® armour that chews through grinder discs.
- 2A second lock on a second point doubles it: four cuts, double the discs, double the batteries, double the time exposed.
- 3Most thieves work to a tight window. Two Diamond-rated Liteloks is usually the point they decide it's not worth it and move on.
X1
Lock 2: X1
Two X1s on two separate points — Diamond-rated on both. Four cuts total required to steal your bike.
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.
- AMAndrew M.Verified BuyerWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Value for Money, Angle Grinder Resistance, Lightweight, Portable5 days agoWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Value for Money, Angle Grinder Resistance, Lightweight, PortableRated 5 out of 5 starsTwo Lite Locks
Both my son & I are really pleased with our Lite Locks, easy to carry around and fit on our bikes when we’re out and stop for a coffee and leave at work & home. These locks are well made & easy to use also give peace of mind when you walk away from the bike.
- AEAndrew E.Verified BuyerWhat do you use the lock on? MotorcycleWhat do you like about this lock? Angle Grinder Resistance, Made in Britain, High Security, Value for Money, Great Quality6 days agoWhat do you use the lock on? MotorcycleWhat do you like about this lock? Angle Grinder Resistance, Made in Britain, High Security, Value for Money, Great QualityRated 5 out of 5 starsLITELOK X1
Easy to carry and easy to fit. Product came really quick !!! Hopefully does the job if needed.
- ASAndrew S.Verified BuyerWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Angle Grinder Resistance, Portable1 week agoWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Angle Grinder Resistance, PortableRated 5 out of 5 starsExcellent on Honda XL750 Transalp
Fits through front wheel and brake discs neat and tidy!
- OPOleh P.Verified BuyerWhat do you use the lock on? E-ScooterWhat do you like about this lock? Great Quality, Angle Grinder Resistance, High Security, Portable1 week agoWhat do you use the lock on? E-ScooterWhat do you like about this lock? Great Quality, Angle Grinder Resistance, High Security, PortableRated 5 out of 5 starsHervorragender Schutz und erstklassige Qualität
Ein großartiges und extrem solides U-Schloss. Der Litelok X1 macht einen absolut zuverlässigen Eindruck: Der Bügel ist massiv und der Schließmechanismus läuft butterweich ohne jegliches Spiel. Die Verarbeitungsqualität und die Materialien sind auf höchstem Niveau. Es ist zwar kein Leichtgewicht, aber für das perfekte Gefühl von Sicherheit und den optimalen Schutz des Scooters nimmt man das Gewicht gerne in Kauf. Absolut empfehlenswert!
- MKMalcolm K.Verified BuyerWhat do you use the lock on? E-Bike1 week agoWhat do you use the lock on? E-BikeRated 5 out of 5 starsLITELOK for a bike.
Looks very robust excellent quality can’t wait to use it off down to Cornwall in a couple of weeks time to give it a workout.
- ESEthan S.Verified BuyerWhat do you use the lock on? Mountain Bike, Road Bike, Commuter/City BikeWhat do you like about this lock? Great Quality, High Security1 week agoWhat do you use the lock on? Mountain Bike, Road Bike, Commuter/City BikeWhat do you like about this lock? Great Quality, High SecurityRated 4 out of 5 starsAlmost perfect
This lock is great. The weight is lower than the comparative kryptonite with away better rubber protection and so far a smoother locking actuation. For the price of this lock it's very disappointing to see that the reflector stickers on this started coming off during the first use. On top of that, comparative brands ship with the lock mount included.
- DSDee S.Verified BuyerWhat do you use the lock on? E-ScooterWhat do you like about this lock? Great Quality, High Security2 weeks agoWhat do you use the lock on? E-ScooterWhat do you like about this lock? Great Quality, High SecurityRated 5 out of 5 starsDurable!
I sleep well at night knowing my Scooter is secured with a Litelok X1.
- GSGuy S.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 weeks 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 3 out of 5 starsX1 review
Litelok x1
- TCTony C.Verified BuyerWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Value for Money, Angle Grinder Resistance, High Security2 weeks agoWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Value for Money, Angle Grinder Resistance, High SecurityRated 5 out of 5 starsGreat lock
Nice and sturdy. Fits vespa and other bikes i have. Storage pouch is handy too.
- STShaun T.Verified BuyerWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Value for Money, Angle Grinder Resistance, Made in Britain3 weeks agoWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, Value for Money, Angle Grinder Resistance, Made in BritainRated 5 out of 5 starsNo More thefts
I had 2 bikes stolen over 2 years. Since I've started putting a LiteLok on each wheel no more thefts. I live in a block of flats and the locked secure garage with CCTV gets broken into, I live in London, but since I've started putting a X1 moto on each wheel the bike are still there. Sometimes the cover has been lifted, but they obviously know they the litelok is too much for them.
