Litelok X1 bike lockThe lock is a bank

Barbara Merz-Weigandt

 · 11.09.2025

The British manufacturer Litelok presents the X-series U-locks made from patented barronium material.
Photo: Litelok

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With the X-series, Litelok presents a new generation of bike locks that combine high security with easy handling. Barronium makes the locks significantly more resistant to angle grinders and other tools.

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Litelok introduces the X-series, a new generation of high-security locks for bicycles that have been specially developed to combat the increasing threat of angle grinder attacks. The centrepiece of this innovation is the patented barronium material used in the outer shell of the lock. According to the manufacturer, this composite material is designed to withstand angle grinder attacks for significantly longer than conventional locks. Independent tests confirm this claim: according to thebestbikelock.com, an attacker with an angle grinder needed more than 17 minutes to penetrate the lock - around three times as long as the most secure locks tested to date. This extended resistance time increases the likelihood of potential thieves giving up or being noticed, which is a crucial security advantage. The locks are available in two versions: the Litelok X1 as an entry-level model and the Litelok X3 as a premium version with additional security features.

Solid protection: The barronium material of the Litelok X1 has even withstood attacks with angle grinders in tests.Photo: LitelokSolid protection: The barronium material of the Litelok X1 has even withstood attacks with angle grinders in tests.

X1 model: safety without compromise

The Litelok X1 combines high security with practical handling. The lock is available for bicycles as well as in a special version for motorbikes. The construction consists of a robust shackle with patented Barronium technology. Barronium is permanently fused to a hardened fine grain high tensile strength steel core, which is designed to provide protection against all other commonly used tools such as bolt cutters, cable cutters, long levers, hammers and chisels. The lock has a high-quality locking cylinder that is protected against picking attacks. The robust construction weighs in at 1.7 kilograms. The X1 model is available in two colour variants, Quartz White and Arctic Camo. The manufacturer emphasises its user-friendliness: the lock is easy to open and close, while at the same time meeting the highest security standards. The surface made from a soft, plant-based eco-rubber outer layer is designed to protect the frame. Reflective strips also increase visibility on the bike.

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Practical accessory: With the Tactical Mount bracket, the 1.7-kilo lock can be attached to the frame at various points.Photo: LitelokPractical accessory: With the Tactical Mount bracket, the 1.7-kilo lock can be attached to the frame at various points.
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X3 model: Premium security with ABLOY locking cylinder

For even higher safety requirements Litelok the X3 model, which is based on the same barronium technology but is equipped with a premium locking cylinder from ABLOY. This cylinder is recognised as one of the most secure on the market and offers additional protection against advanced picking methods and other non-destructive opening attempts. The X3 model is also available for both bicycles and motorbikes and offers the same resistance to angle grinder attacks as the X1 model. The price difference to the X1 model is mainly due to the higher quality locking cylinder. With the X3 model, Litelok is particularly appealing to security-conscious cyclists and motorcyclists who do not want to compromise on security and are prepared to pay a higher price for this additional protection.

Practical accessories for everyday use

In addition to the locks themselves, Litelok also offers suitable accessories to make everyday use easier. The Tactical Mount, a special holder, is designed to make it easier to transport the lock on a bicycle or motorbike. This mount is available for both the X1 and X3 models. There is also an X-Pouch, a storage bag that is supplied free of charge with certain models.

Production and corporate philosophy

Litelok emphasises sustainable and high-quality production. All locks are manufactured in a solar-powered factory in South Wales, UK. The company emphasises its "Made in Britain" approach and the associated quality control.

Prices and availability

The Litelok X1 is available for 179 euros. The premium model X3 costs 299 euros. For customers who want to combine several locks, Litelok also offers various security packages that are more attractively priced than buying them individually. All products can be ordered directly via the Litelok website and the company offers worldwide shipping.

An investment in security: For 179 euros, the Litelok X1 is a reliable U-lock.Photo: LitelokAn investment in security: For 179 euros, the Litelok X1 is a reliable U-lock.

Technical specifications

LITELOK X1 bicycle lock

  • Material: Patented Barronium composite material
  • Resistance time against angle grinders: Over 17 minutes according to independent tests
  • Weight: 1.7 kg
  • Inner dimensions: 101 x 197 mm
  • Outer dimensions: 143 x 265 mm
  • Mount: Compatible with X1 Tactical Mount and Twist & Go Mount (both sold separately)
  • Available colours: Quartz White, Arctic Camo
  • Reflective material
  • Price: 179 Euro >> available here
  • Area of application: Bicycles and e-bikes (X1 Bike) or motorbikes (X1 Moto)
The Litelok X1 can be ordered via the Litelok website. A protective cover and two keys are included in the package.Photo: Barbara Merz-WeigandtThe Litelok X1 can be ordered via the Litelok website. A protective cover and two keys are included in the package.

LITELOK X3 U-lock

  • Material: Patented Barronium composite material
  • Locking cylinder: Premium ABLOY cylinder
  • Resistance time against angle grinder: Comparable with X1
  • Weight: 2.1 kg
  • Inner dimensions: 100 x 195 mm
  • Outer dimensions: 145 x 275 mm
  • Accessories: Litelok X-Pouch included
  • Area of application: Bicycles and e-bikes (X3 Bike) or motorbikes (X3 Moto)
  • Price: 299 Euro >> available here

Accessories for mounting and transport

The Tactical Mount for attachment to the frame must be ordered separately.Photo: Barbara Merz-WeigandtThe Tactical Mount for attachment to the frame must be ordered separately.

Barbara Merz-Weigandt

Barbara Merz-Weigandt

Editor-in-Chief

Barbara Merz-Weigandt, editor-in-chief of MYBIKE, the magazine for dedicated everyday and touring cyclists, lives on Lake Starnberg. Her great passion: travelling. She has crossed the Alps by touring bike - on the Via Claudia Augusta, the Ciclovia Munich-Venezia and the Alpe-Adria cycle path. She has explored the islands of Croatia and the Lycian coast by motorised sailboat and bike, and has travelled to all the Balearic and Canary Islands by bike. Her favourite place to ride her mountain bike is on the trails in the Bavarian Alps, the Dolomites or on La Palma.

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