Skunklock: the bike lock that makes thieves vomit

Indiegogo campaign for bike lock that releases vile smell when it’s sawn into

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Lock's colour scheme is designed to warn off thieves too

Called Skunklock, the lock is the brainchild of San Francisco inventor Daniel Idzkowski. When his bikes and those of his friends were persistently stolen, he decided to find a way to deter thieves more effectively.

With the right tools, it’s possible to cut through a bike lock pretty quickly and Idzkowski says 1.5 million bikes are stolen in the US each year with an estimated market value of over $350m, with professional thieves using angle grinders or blow torches to attack the highest security locks.

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The Skunklock is a U-lock design and is made of hardened steel. But inside the lock and running the length of the U-section is a pressurised cavity filled with a noxious chemical deterrent mixture.

Cut into the lock and this ends up being sprayed all over the would-be thief. Idzkowski says that the smell is so disgusting that it induces vomiting in the majority of cases.

Idzkowski is looking to raise $20,000 on Indiegogo (opens in new tab) to bring the product to market.

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The Skunklock is guaranteed to be safe with everyday use. It’s permanently sealed, so you won’t get a faceful of chemicals as you unlock your bike to ride home. The locking bar is made of high strength steel and comes with a high security lock mechanism and multiple keys.

Lock's colour scheme is designed to warn off thieves too

Although they don’t smell too good, Shunklock’s chemical deterrents are apparently legal throughout the US, although in some states it cannot be sold with the capsaicin compounds of the full-strength formula and will be offered with an alternative concoction.

Of course, the lock wouldn’t have worked against the thief in China who cut down a tree to steal the bike locked to it.

But even if a guy wearing a gas mask goes after your bike, the odour is still apparently able to get to the thief and will stick to his clothes.

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Paul started writing for Cycling Weekly in 2015, covering cycling tech, new bikes and product testing. Since then, he’s reviewed hundreds of bikes and thousands of other pieces of cycling equipment for the magazine and the Cycling Weekly website.

He’s been cycling for a lot longer than that though and his travels by bike have taken him all around Europe and to California. He’s been riding gravel since before gravel bikes existed too, riding a cyclocross bike through the Chilterns and along the South Downs.