Highly Secure, Flexible & Wearable

Regular price £119.99

LITELOK CORE FLEX is the lightest Sold Secure Gold-rated wearable bike lock on the market, for cyclists looking for high security and extra flexibility. Built to protect your bike, our flexible bike lock is designed for ease of use and portability.

  • Ideal for securing all bikes and e-bikes
  • Multi-layered high security with Boaflexicore+ technology and radial reinforcement providing Gold-rated protection
  • More flexible than traditional U/D locks to secure through any bike frame and around fixed objects
  • Will coil up for easy packing
  • Weighs only 1.7kg
  • Wearable and mountable
  • 75cm locking length and available in two colours

Winner of the prestigious Reddot Design Award 2021

Reddot Design Award 2018

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Gold Rated FLexible Bike Lock

For long periods or in high-risk areas




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.



LITELOK CORE FLEX is the go-to flexible bike lock for riders looking for gold rated security, when locking their ride for long periods of time or in high-risk areas. Insurance rated, independently tested and accredited to Sold Secure Bicycle Gold.




What's in the CORE Flex box?



Frequently Asked Questions

Will CORE Flex fit my waist?

CORE Flex will fit a waist size up to around 41 inches. Each lock is supplied with an elasticated wearable kit. You don’t need to close the lock around your waist, the wearable kit secures the lock while you wear it for comfort. 

How secure is CORE FLEX? 

CORE Flex is independently tested by Sold Secure and has achieved the Gold rating. Sold Secure Gold is the insurance recommended performance level for most bikes above £1,500 and now most E-Bikes. 

What is CORE FLEX ideal for?

CORE FLEX is ideal for longer stops in higher risk areas and for commuters who need a high level of security.

Can I attach CORE FLEX to my bike? 

Yes, the CORE Flex is supplied with a set of wrap straps and frame mounts. These can be used to mount the lock to your frame or pannier rack etc. With so many frame variations please feel free to contact us for assistance on this. 

What is CORE FLEX made of? 

CORE Flex is made of 3 layers of protection. A high tensile steel core, steel radial protection and then protected by a plant based biopolymer. The whole construction is then covered with the abrasion sleeve. 

Can you coil CORE FLEX? 

Yes, you can! The Flex construction allows the lock to be coiled down and secured with the wrap straps. 

How much does CORE FLEX weigh? 

CORE Flex weighs 1.7kg (3.7lbs) making it one of the lightest Sold Secure Gold locks available. 

How do I lock my bike with a CORE FLEX? 

We’d always recommend locking your bike to something as well as having the lock through your frame and back wheel. With so many frame variations please feel free to contact us for assistance on this.

Litelok Core Flex

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

Litelok Core Flex

Universally Wearable

LITELOK CORE FLEX 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 also makes it easier to lock around fixed objects.

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

Litelok Core Flex

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. Every one of our flexible bike locks is 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.

Litelok Core Flex

Security Reimagined

Core Flex Specification

WEIGHT 1.7kg (3.7lb)
28" (70cm) - 44" (112cm)

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