MADE IN BRITAIN · SOLD SECURE DIAMOND
Thieves cut a standard bie lock in seconds. LITELOK's Barronium® armour stops the angle grinder dead so your bike is still there when you get back.
4.8/5 from 7,000+ riders
ONE RANGE · EVERY RIDE
Every lock in the X range is Sold Secure Diamond rated and built with Barronium®. The difference is reach, size and weight - so you get maximum security without carrying more than you need.
Our lightest grinder-resistant D-lock. Ideal for riders who want top-notch security in a smaller, lighter and more portable lock.
from £139.99
View X1 MINI
The Best Bike Lock in the World. The LITELOK X1 masterfully balances security, price, and performance.
from £169.99
View X1
The world's only long-reach grinder-resistant D-lock. Locks through your wheel AND to a post, rail or stand.
from £219.99
View X1 PLUS
Our toughest lock — up to 20× more grinder-resistant. For the highest-risk spots and bikes you leave parked all day.
from £279.99
View X3Take our 60-second quiz and we'll match the right lock to you and your bike.
Take the 60-second quizThat's exactly what it's built for. Barronium® armour is engineered to destroy cutting discs rather than be cut itself, so an attack means disc after disc, minutes of effort, and a lot of noise and sparks in a public spot. Every LITELOK X lock is independently Sold Secure Diamond rated (Pedal Cycle Diamond for bikes, Powered Cycle Diamond for e-bikes) - the highest tier.
All four are Sold Secure Diamond and built with Barronium® — the difference is size, price, reach and weight. X1 MINI for a lightweight and compact grinder resistant lock, X1 (the Best Bike Lock in the World) as the everyday all-rounder, X1 PLUS when you need extra reach to lock through your whee and to a stand (or multiple bikes), and X3 for the highest-risk spots. Not sure? Take the 60-second quiz.
Yes - and these are exactly the bikes worth protecting. E-bike and cargo frames are chunkier, so size matters: X1 PLUS gives you the length to get around a fatter frame or to lock through the rear wheel and to a solid object at once. For large cargo setups many riders run two LITELOKs for added security. Each product page lists exact internal dimensions, or message us your bike and we'll point you to the right one.
Riders are always surprised. Because the increased security comes from the Barronium® composite, you get significantly better security that's no heavier than a typical unarmoured lock.
Yes. You can order a pair of X1 locks keyed alike on our website. If you already have an X1, X1 MINI or X1 PLUS - you can order another X1 lock with the same key as your original lock. This service is not currently available for X3.
We offer FREE UK shipping on the X range (excludes Northern Ireland), with next-working-day delivery available for a small fee. InPost Locker delivery is also available at checkout.
If you change your mind after buying one of our locks, you can return the lock to us within 30-days and as long as the product is unused, in its original packaging, and in resellable condition we'll give you a full refund.
“This is my second Litelok X1 - first one I bought for my racing bike, and given my good experience with it, I decided to buy another one for my e-bike. I live in London and initially was very nervous every time I parked my e-bike on the street while running errands. Now I feel confident to leave it outside for a few hours, which makes such a difference. Highly recommend.”
“Having had an expensive and supposedly highly rated German brand of bike lock cut through with an angle grinder at Paddington station, I took the decision to go for the current best in market in terms of cut-resistance. The chances of someone carrying round 5+ replacement grinder disks is unlikely - and there will always be easier locks to go for. While it's on the heavy side, it's not disproportionate and I don't notice it on the road bike I use in London. I really like the novel lock mount.”
“I bought the Litelok X1 mainly for riding in London where bike theft is a constant concern, and it’s made a big difference to how confident I feel locking up. The build quality is excellent, it feels very solid without being overly heavy like some high-security locks. It’s a good balance between security and practicality. I can lock the frame and rear wheel to a fixed object without struggling, which is exactly what I need for day-to-day use. It’s also compact enough that I don’t mind carrying it on rides. Overall, it does exactly what I wanted, gives proper peace of mind without being a hassle to use. Definitely worth it if you’re locking up in a city.”
“Very happy with this new smaller D-lock version. It’s slightly wider than other D-locks I’ve had which makes it easier to lock to most posts in London. It a bit heavier than most but still light enough for everyday use. Long may it last!”
“I toiled with the idea of getting a cheaper lock, but after watching countless bike lock reviews/tests on YouTube, I took the plunge and went for the X3. I'm so glad I did. It's tough and definitely heavy duty, but the coating isn't abrasive on my brand new Cube Stereo hybrid one44 AT. I sleep better knowing this lock is on my bike. I'm so impressed with the lock, I'm going to get the X1 and Core flex to link my bike to a wall anchor when home and have options when I'm out and about.”
“I’m genuinely impressed with the X1 Plus bicycle lock. From the moment I took it out of the box, it stood out with its sleek, high‑quality look, but what really matters is the peace of mind it brings. I can confidently leave my bike locked in public spaces, knowing the lock is solid and dependable and will truly do its job. It feels like a well‑thought‑out product that balances design and security perfectly. Overall, it’s a great investment and one I’d happily recommend to any cyclist who values both style and reliable protection for their bike.”
To an organised thief, most locks are a formality — grinder out, a few seconds, gone, quietly, in broad daylight. Then they reach a LITELOK: a burnt-through disc, minutes of effort, sparks and noise they can't afford. That's the exact moment we engineer for.
BUILT WITH BARRONIUM®
Barronium® is our hardened composite armour. Instead of being sliced like hardened steel, it chews up cutting discs — forcing thieves through disc after disc, minutes of effort, sparks and noise they can't afford.
Engineered to outlast the best-selling, unarmoured D-locks against an angle grinder (X3 at least 20x; X1 at least 5×).
The highest security tier and the rating insurance companies look for.
X-range is built from Barronium® composite so you get top-tier protection that's genuinely easy to carry in a back pack, panniers or stash under the seat.
Real British innovation and engineering - not cheap materials manufactured overseas.
Join thousands of riders who park with confidence. Find the LITELOK that fits your bike and your level of risk.
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DIRECT FROM THE MAKERS
Every LITELOK is designed, tested and built by us on a solar-powered factory in Swansea — then sold straight to you. That's how we keep the engineering this good, and cut out everyone who'd water it down.
