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Color: Boa Green
Image Description Made in Britain
Image Description Wearable
Image Description Click to Lock
Image Description Flexible


Image Description
Image Description

What our customers say...

Graham C, United Kingdom

"The Litelok Core Flex is the perfect compromise of security & manageable size. It fits perfectly into a pannier, it maybe weighty, yet that is the degree of security within its design. Locking up my bike is like giving a signal - give that a try to nick it before I return, no chance!"

Stefanie P, United Kingdom

"I bought this lock to secure my e-bike and give me peace of mind. It is very well made and solid. I am a 65 year old female so didn’t want anything too heavy. I can wear it around my waist whilst riding and it isn’t at all uncomfortable. Great product 👍"

R H, United Kingdom

"The Litelok Core Flex is a lock you can wear on gravel rides and it's surprisingly comfortable. I cycled 40km on a mixture of trail and road, climbed over styes and crouched down over the handlebars. The Litelok was barely noticeable, just the job."

Carl W, United Kingdom

"Strong, easily fitted and resistant to most types of attack this would considerably certainly slow down any attack on your cycle.I had need to contact the company with a question after purchase and the response was extremely and helpful, thank you Debra. I actually purchased two locks. Well worth the money."

Guillaume H, United Kingdom

"Very easy to transport, quite light, it does not get greasy and it is easy to use it due to its shape, flexibility and locking system. 10/10"

Gold Rated Flexible Bike Lock


Our Boaflexicore+ secure strap withstands sustained attack with layered protection including a plant-based polymer, radial reinforcement and high tensile core joined to an aerospace grade hardened steel inline lock body.


Our patented radial reinforcement not only protects the tensile steel core within, but it also flexes in sync to retain maximum flexibility without compromising on security.


When it comes to weight LITELOK CORE FLEX is unparalleled in its security class and up to 50% lighter than most other gold standard security locks. Weighing only 1.7kg (3.7lb) say goodbye to hauling heavy chains whilst riding and say hello to the best flexible bike lock out there.


Our integrated design and click to lock system make it easy and fast to secure your bike, without having to fiddle around. Simply click to close without the need for a key. A key is only required to unlock your bike.


Universally Wearable

LITELOK CORE Flex is the best wearable bike lock out there - it can be effortlessly worn whilst riding. Simply wear your CORE Flex lock on your hips and secure it with the universal wearable kit which safely fastens around your body without it locking.

The pre-formed lozenge shape of the LITELOK CORE Flex not only makes for comfortable wearing by hugging the hips but is also easier to lock around fixed objects.


Made from Tough Stuff

We are setting the standard in cycle security through revolutionary design & innovative technology - by working with the world’s leading material scientists & cutting edge manufacturing techniques.

LITELOK CORE Flex features include; Corrosion resistant internals (tested to -40c), pick resistant disc detainer locks (tested to 10,000 open/close cycles) and automotive standard drill resistant rivets. 

We minimise our environmental impact where possible by swapping plastic for plant based polymers.


Frame Mountable

Our team of in-house expert designers and engineers have a meticulous eye for product detail, with everyday usability at the heart of everything they create.

All LITELOK CORE Flex bike locks are supplied with a set of easy to use frame mounts. Adjustable hook and loop straps ensure it will fit most frame shapes and sizes, whilst the rubberised strap prevents damage to your much loved bike. The simple click and hold design makes mounting and un-mounting super easy, secure and hassle free.


CORE Flex combines the best in high-security materials and world-class usability. The result is a Gold-rated wearable lock that's easy to use and will keep your bike safe.


Our Boaflexicore+ secure strap withstands sustained attack with layered protection including a plant-based polymer, radial reinforcement and high tensile core

Universally Wearable

LITELOK CORE Flex is the best wearable bike lock out there - it can be effortlessly worn whilst riding.

Lock Cylinder

Stainless steel, corrosion resistant hardened internals with high pick resistance and drill resistant rivets.


Boa Green or Cobra Black

Our flexible bike lock is available in two colours; striking BOA GREEN for optimum visibility or COBRA BLACK for a more understated look, but with the subtle signature FLEX Boa green detailing running through.

LITELOK CORE FLEX is also wearable. Our unique universal wearable kit simply attaches to the lock, can be quickly and easily adjusted to multiple lengths, is comfortable and safe to use whilst riding and makes the lock even more versatile for wearing.

It fits waist sizes from 28"(70cm) - 44"(112cm).


Flexible for easy mounting & packing

Due to the flexible nature of CORE FLEX, it can be coiled to a smaller size for packing in a bag or mounting on a small frame. 

Coils down to approximately 15cm (5.9") in diameter.

What's in the Box?

When you order a LITELOK X1, you will receive:

  • 3 x Unique Keys
  • Wrapstraps
  • CORE Frame Mounts
  • CORE Wearable Kit

1 x Wearable Kit

Allowing you to wear your lock safely whilst riding. Supplied with two lengths of adjustable strap.


LITELOK CORE Flex high-security wearable bike lock.

3 x Unique Keys

Each key's unique code can be registered under warranty to use our key replacement service.


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CORE Frame Mounts

Provides to capability to mount your CORE Flex on your ride.


Frequently Asked Questions