LITELOK X1
AWARDED WORLD'S TOUGHEST LOCK 2026
ANTI-ANGLE GRINDER
MADE IN BRITAIN
BUILT WITH BARRONIUM®
Accreditation
Best price/value bike lock for security
If you have a valuable bike or e-bike and/leave It for hours outside you might want to pick one up. Strong, with enough room to lock your bike and not too heavy. One, if not the best in this price range.
Carlo G.
Without a Doubt The Best Lock in the World
I invested in an electric bike and wanted to feel that it was secure when out and about. With this lock l can leave it almost anywhere. I live in a very busy city where cycle theft is a very large industry.
Not for my bike though. I have seen cut locks and chains throughout , but mine has not even a touch.
Keep it up Litelok, well impressed
Cliff F.
Good luck cutting this bad boy
Amazing quality good price nice cover fits though my front wheel and disks prefect nice cover to put the lock in after use highly recommend.
Martin A.
What the experts say...
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 E-Bike in Lyon #81
On July 13, 2025, Greg returned from a visit to the bustling Les Puces du Canal fleamarket to find his $4,000 Ruff Cycles ebike under attack. Thieves had taken an angle grinder to his Litelok X1, g...
LITELOK X1 Saves Bike in Berlin #78
When a thief attempted to steal Isabelle’s €2,000 bike in broad daylight in central Berlin, the LITELOK X1 stood strong. Learn how this high-security bike lock prevented the theft, and why it’s a m...
LITELOK X1 Saves Bikes in Poland #77
When thieves armed with an angle grinder targeted two high-end bikes in Wrocław, only one lock stood in their way — the LITELOK X1. Find out how this ultra-secure lock helped prevent a total loss a...
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 the 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 most 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.
- LHl h.Verified BuyerWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, High Security1 hour agoWhat do you use the lock on? MotorcycleWhat do you like about this lock? Great Quality, High SecurityReviewingLITELOK X1Rated 5 out of 5 starsGreat product and peace of mind
I bought the X1 for my 2010 fireblade and it fits perfectly through both front discs and the wheel. Very happy with it .
- LHLee H.Verified BuyerWhat do you use the lock on? OtherWhat do you like about the lock? Great Quality, Angle Grinder Resistance, High Security, Lightweight, Portable3 hours agoWhat do you use the lock on? OtherWhat do you like about the lock? Great Quality, Angle Grinder Resistance, High Security, Lightweight, PortableReviewingLITELOK X1 MOTORated 5 out of 5 starsTop-Quality Lock for Any Rider
bought the Litelok for my Maeving RM1 and couldn’t be happier. It feels incredibly well made, is easy to use, and gives me real peace of mind when parking my bike.
A premium, practical lock with excellent build quality — highly recommended for any rider looking for serious security.
- JTJohn T.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, Made in Britain4 hours agoWhat do you use the lock on? OtherWhat do you like about the lock? Great Quality, Value for Money, Angle Grinder Resistance, High Security, Made in BritainReviewingLITELOK X1 MOTORated 5 out of 5 starsLitelok X1 Moto
Excellent bit of kit, Highly recommend this lock, Feel much more confident leaving my Harley, Can't see anyone getting through this bad boy any time soon, Best lock I've come across in years, Costs a bit more than I'm used to but hey how much do you value your bike 🏍 many thanks John 😊
- ORO.Cici R.Verified BuyerWhat do you use the lock on? Road Bike, OtherWhat do you like about this lock? Great Quality, Angle Grinder Resistance, High Security, Made in Britain, Wearable2 days agoWhat do you use the lock on? Road Bike, OtherWhat do you like about this lock? Great Quality, Angle Grinder Resistance, High Security, Made in Britain, WearableReviewingLITELOK X1Rated 5 out of 5 starsTough stuff
This is solid! The weight may put some people off, but I just see it as extra training. It fits in my bag attach it using a VELO strap or put in my belt loop.
Someone asked me "what bike would you use this for?"
My answer: "The one I want to keep".
Living in the Capital, there are areas that bike thieves target. I do not plan on being the next victim, so why go cheap & regret it later.
- THTommy H.Verified BuyerWhat do you use the lock on? CruiserWhat do you like about the lock? Angle Grinder Resistance, High Security, Portable, Made in Britain, Great Quality2 days agoWhat do you use the lock on? CruiserWhat do you like about the lock? Angle Grinder Resistance, High Security, Portable, Made in Britain, Great QualityReviewingLITELOK X1 MOTORated 5 out of 5 starsLitelok x1 moto
Used this lock to secure my speed twin while on a 4 day uk south coast tour .we stayed overnight in hotels that didn’t offer secure parking!! ( only carpark cameras )
I was able to put this lock through the wheel spokes and around a suspension strut…
This enabled me to sleep soundly knowing that I’d done all I could do to keep my bike secure.
- 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 Security6 days agoWhat do you use the lock on? E-ScooterWhat do you like about this lock? Great Quality, Angle Grinder Resistance, Lightweight, Value for Money, High SecurityReviewingLITELOK X1Rated 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, Portable6 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, PortableReviewingLITELOK X1Rated 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 Quality1 week agoWhat do you use the lock on? Commuter/City BikeWhat do you like about this lock? Great QualityReviewingLITELOK X1Rated 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, Portable1 week 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, PortableReviewingLITELOK X1Rated 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.
- MMMark M.Verified BuyerWhat do you use the lock on? Touring BikeWhat do you like about the lock? Value for Money, Great Quality, Angle Grinder Resistance, High Security, Lightweight1 week agoWhat do you use the lock on? Touring BikeWhat do you like about the lock? Value for Money, Great Quality, Angle Grinder Resistance, High Security, LightweightReviewingLITELOK X1 MOTORated 5 out of 5 starsLighter than expected! Perfect for the job!
This is my first D lock!
Before purchasing, I did much reviews and came to the conclusion. This is the best value for money.
I am extremely happy with my purchase and use it every day since receiving, highly recommended
I was expecting this Lock to weight a lot more!
