So popular it’s sold out! We’re working hard to sting thieves, not our employees.
So popular it’s sold out! We’re working hard to sting
thieves, not our employees.
Info on bikes, motorcycles, scooters, and many other things related to your CactUs
Smells are part of our daily lives. They influence our memory, mood, stress, appetite, and behaviors… without us even realizing it. Yet, smell remains a sense much less understood than sight or hearing, even though it is one of the most primitive.
A foul odor is a smell so strong, pervasive, and unpleasant that it immediately triggers a recoil or flight reflex, directly linked to the survival instinct. This term generally refers to odors associated with decomposition, unsanitary conditions, or environments dangerous to humans.
But how does an odor become ‘foul’? And more importantly, why does our brain react so violently?
When we think of “anti-theft,” we usually imagine metal, resistance, materials capable of delaying an attack. Yet, long before hardened steel, alarms, or lights, humans already had a formidable survival tool: the sense of smell.
Searching for *”best bike lock”* means you’re looking for certainty: that you’ll find your bike where you left it. Today, a poorly secured bike can disappear in seconds, even in broad daylight, even in front of a store, even in a quiet neighborhood. All it takes is a pair of pliers, a portable angle grinder, or a simple lever.
Electric scooters are now part of the urban landscape. You see them everywhere: in front of offices, shops, campuses, or transport stops. But this new popularity has a direct consequence: **scooter theft is skyrocketing**. Today, they are one of the easiest two-wheelers to steal, precisely because they are light, compact, and often poorly protected.
Even a high-quality bike requires minimal maintenance to stay safe, comfortable, and perform well (and yes… it’s like a car, it needs maintenance). And when you use your bike or electric bike daily, using a **bike repair** service becomes inevitable. However, many breakdowns can be anticipated, avoided, or diagnosed early on, before they become a costly problem.
Cycling — whether on a traditional or electric bike — has never been so popular. But to ride with peace of mind, efficiently, and safely, you still need to be well-equipped. Whether it’s a simple daily commute or a long urban journey, **bike accessories** make all the difference.
A **bike lock** is much more than a simple accessory: it’s the element that determines whether your bike will still be there when you come back for it. With the explosion of electric bikes, cargo bikes, and urban cycling, bike theft has become one of the primary reasons for abandoning sustainable mobility: 500,000 thefts annually in France, and 1/3 of cyclists change their habits after a theft. In summary: a poorly chosen lock can cost you an entire bike.
The survival instinct is the most fundamental drive in living beings. Long before humans invented tools, language, or culture, their bodies already knew how to recognize danger, react, flee, and protect themselves. This instinct still governs much of our behavior today, even when we are not aware of it.
Putrefaction is one of the most essential biological processes in the cycle of life. It allows organic matter to return to the environment, nourish soils, and recycle nutrients. Yet, despite its importance, it is a phenomenon that immediately inspires disgust, rejection, and sometimes a form of instinctive panic.
Year after year, bike theft remains the primary barrier to adopting sustainable mobility.
We’re happy to cycle, happy to leave the car… but not if it means feeling anxious every time we lock up our bikes.
This is precisely where Sharelock and CactUs Lock found common ground: making cyclists’ daily lives more serene.
CactUs Lock works like a metal pipe.
The lock consists of a thick, reinforced metal structure with a hollow channel at its center, running through the entire shackle.
Inside this channel is a pressurized gas containing a molecule associated with putrefaction: putrescine.
This gas is completely confined as long as the lock is not attacked.
⇒ Solid on the outside, deterrent on the inside.
The smell is triggered only during a cutting attempt.
When a grinder-type tool attacks the lock, it must first cut through a significant thickness of metal.
Once one-third of the material is breached, the gas is released, forming an olfactory cloud 2 to 3 meters around the lock.
The remaining two-thirds of the lock will then need to be cut to free the bike or motorcycle.
⇒ No sensors, no electronics: cutting alone triggers the smell.
No.
Shocks, vibrations, normal handling, or accidental drops do not trigger anything.
The system is designed to react only to a deliberate cutting attack.
As long as the lock is not attacked, the gas remains perfectly confined.
⇒ Normal use = no smell.
Once triggered, the smell is extremely persistent and difficult to ignore.
It makes continuing the theft very complicated for two main reasons:
Furthermore, the molecule attaches to hair and tongue receptors, meaning the smell can persist for several days on the exposed person.
After triggering, the lock is no longer reusable. But its mission is accomplished: the lock has protected your bike/motorcycle.
It smells like putrefaction (the smell of decomposing corpses).
It’s an immediately identifiable smell, very difficult to tolerate and impossible to ignore.
The human brain is extremely sensitive to it, triggering an instinctive flight reflex.
In the air: from a few tens of minutes to a few hours, depending on ventilation.
On an exposed person: several days, because the molecule attaches to hair, body hair, and tongue receptors.
No.
Currently, there is no known technique to neutralize the molecule.
Only time allows the smell to fade and then disappear.
To be fully protected, a gas mask would be needed, which is prohibited in public.
An FFP2 type mask is ineffective.
Furthermore, even with a mask, hair and body hair remain exposed, leading to a lasting fixation of the smell once the mask is removed.
Yes. CactUs Lock is legal for sale and use.
The system relies on a naturally occurring molecule (putrescine), encapsulated under pressure for micro-dosed and controlled release, only in case of partial cutting.
⇒ It is not a weapon, but a passive deterrent device integrated into a lock.
No.
The gas is micro-dosed, and therefore presents no risk of injury or bodily harm.
It is, however, very unpleasant and systematically triggers survival instincts: strong discomfort, nausea, head aversion, recoil movements, difficulty concentrating, an irrepressible urge to flee, disgust…
⇒ It makes them flee but causes no harm.
No.
The gas can only be released after more than one-third of the lock has been cut.
Furthermore, the system is secured by an injection valve + a safety valve + a resin-sealed cap, all within a thick metal layer.
⇒ No shock, vibration, or mishandling can cause it to trigger.
No.
The gas is perfectly confined thanks to internal safety systems and does not leak over time.
In accordance with European regulations, a preventive gas replacement is recommended every 3 years.
35 cm long, 18 cm wide, and 22 mm in diameter.
Yes. CactUs Lock is FUB 2-wheel and SRA Bike certified for V2.
Yes, in most cases for V2.
The FUB 2-wheel and SRA Bike certifications allow CactUs Lock to be accepted by many insurers.
For V1, it is only compatible with Sharelock, Ulygo, and Tulip. However, we recommend checking the exact terms of your contract, as each insurer has its own criteria.
Yes.
The lock is designed with a thick metal structure, intended to resist attacks, and is SRA and FUB certified, which attests to its resistance.
And most importantly: even if attacked, the olfactory system triggers before the cut is complete, making the continuation of the theft extremely complicated.
No.
The olfactory system is not rechargeable. If triggered, the lock has fulfilled its mission and must be replaced.
2.2 kg.
Yes.
Other sizes and versions are being studied to adapt to different uses and types of two-wheelers: CactUs Lock evolves based on your field feedback, so feel free to share your wishes with us!
CactUs Lock is suitable for classic bikes, e-bikes, cargo bikes, and some motorcycles and two-wheelers.
Its large size allows for easy securing of the frame and a fixed object.
Always around the frame and a solid fixed object.
Avoid securing only a wheel.
Yes, without a problem.
As long as the lock is not attacked, no smell is released.
Yes.
The lock is designed for outdoor use, in all weather conditions.
⇒ Rain, humidity, or cold do not affect mechanical resistance or the olfactory system.
If the lock is damaged or has been subjected to a cutting attempt, do not use it anymore.
Contact our customer service (contact@cactuslock.com) so we can guide you to the most suitable solution.
Delivery times are indicated during the order process and on the product page.
They may vary depending on availability, chosen delivery method, and period (launch, high demand, etc.).
A confirmation and tracking email is sent to you as soon as your order is shipped.
You can track your package in real-time via the provided link: our delivery provider is DPD.
Contact us upon receipt of the package (contact@cactuslock.com).
Take photos of the package and product, then send them to us by email so we can process your request quickly. We’ll take care of it.
In case of high demand, lead times may be extended, and orders converted to pre-orders.
In this case, information is clearly indicated on the website before ordering, and we keep you updated on our social networks, especially Instagram: @cactus_lock.
Our customer service is managed directly by the CactUs Lock team.
We handle requests on a case-by-case basis, with a simple goal: to find a quick and suitable solution.
By email, via the address indicated on the website: contact@cactuslock.com, or via the contact form. We generally respond within 48 business hours.
