knog scout alarm

Knog Scout Bike Alarm and Finder

by 18

The Knog Scout is an 85 decibel motion detection alarm, coupled to Apple’s “find my” app, which also makes it a tracker. In this product, Knog the Australian company best known for making lights and bells, appears to have solved a personal problem I have with utility cycling.

  • Brand: Knog
  • Product: Scout Bike Alarm & Finder
  • From: Silverfish
  • Price: £49.99
  • Tested: by Charlie, 7 weeks.

My problem is…

I live almost 1,000 feet and a 25 minute constant climb above town, which makes my E-bike the preferred choice for nipping out to the shops. Once down in the Calderdale valley, I then need to lock my bike up. However it sometimes feels more like a trench of feckwits and thievery than a beautiful wooded valley full of terrific trails. We seem to have a lot of bike theft round here. You can read about the time Hannah and Amanda had their bikes snatched and dragged up the road behind a car here.

I am uncomfortable leaving a £6,000 bike locked up out of sight. So, I find that I can only leave it locked to railings that are in sight. This now limits my shopping trips to only the Vocation bar, with its convenient railings and 20 variations of excellent beer. Whilst this is a nice problem to have, it is not exactly the healthy cycling infrastructure nirvana I had in mind. In fact, at Vocation with the bike locked up with a chunky Abus Bordo lock/alarm combo, only 20 feet from me, in daylight, on a busy street, its vulnerability was checked out by a gang in a blacked out car and balaclavas. They skidded up to it, saw the lock, decided against it and sped off. The risk is very real.

What does it do?

The Knog Scout offers you a loud 85db motion activated alarm that will alert the thief and anyone nearby that evil malarkey is a foot. When scurrilous behaviour occurs it will alert you via your iPhone.. You can then locate your bike via the Apple “find me” app. Yes, only iPhone users should read on.

What’s in the box?

Set up and installation

This was dead easy, but let me give you a little advice. The extended bottle cage mounting bolts are located in the side of the box, rather than inside it. It is really easy to drop these when you open the box. However they are rather clever and have a simple but non standard tool interface… what I mean is, it’s a weird two prong fitting, rather than an Allen key fitting, to stop the device being easily removed.

You do not get a charging lead in the box. But you probably already have a drawer full of USB C leads.

One simply mounts the device under your bottle cage, downloads the app, synchs the device with the app, and you are in business.

They also include an optional bright yellow cover. This is intended to work as a visual deterrent. I suspect in time bike thieves will recognise the Scout and look for an easier bike to nick. Actually that is one great anti theft strategy… always make the other guy’s bike look easier to nick.

In the app you can adjust the sensitivity of the movement sensor, alarm volume and tone, and also choose if you want it to flash a small LED when set off.

Living with it

It charges via a USB lead, so there is no need to replace the batteries. Knog claims the charge can last for up to 6 months. Recharging is easy, but not as easy as a bike light for example. As it’s mounted on your frame you need to get the bike near a USB socket. Using a remote battery pack is easier than carrying your bike up the stairs of the Singletrack office, and leaning it against a PC.

Can you see it hiding there?

To set the alarm or disarm the device simply push a single button in the app. Very easy.

It’s super easy to carry compared to lock as it’s already on your bike. But don’t forget your phone.

It’s waterproof with an IP65 rating. That means it’s got top notch dust protection, and can handle low pressure spray.

Will it stop a thief?

Yes and no.

Mary from the band Gaye Bykers On Acid used to live in Rio, Brazil. I asked him if he was still cycling, and he told me it was too dangerous and three people had been killed for their bikes in recent weeks. My point being, sometimes you are going to lose the bike, and maybe a lot more, no matter what.

Would it have stopped Hannah and Amanda’s snatch? No, if you are willing to drag two bikes up a road, a bit of beeping would be drowned out by the whole nasty drama of sparks flying and wheels spinning.

Would it stop the gang in the car outside Vocation bar? No, for the same reason it wouldn’t have stopped Hannah and Amanda’s heist. I am pretty sure it was the same gang.  If I had been inside the bar, heard the alarm go off, run outside, and then what? What can one guy do against a gang of heartless ****ers? Reason with them? “You don’t want to nick this bike, it’s a got a press fit BB and the geometry is bit dated now, and that saddle… it will cut you in two”.

Will it stop an opportunist thief? Yeah, they may well panic, drop the bike and run off. And in this scenario, a very common scenario, is where the Scout can make a difference.

Will you get your bike back?

Maybe. You see whilst you can track the device, a thief with an Apple phone will also be notified they are being tracked. This is to prevent misuse of Apple Airtags to follow people home. Your thief will now either find the Scout and smash it off, or remove it with a Scout tool, or dump the bike.

knog scout app
Dude, where’s my car… sorry… bike?

However if your thief does not have an iPhone then you can follow the online mapping, which will lead you to your bike, and the thief, and their mates, in their lock up, where they keep the baseball bats, shooters and hydroponics.

But bear with me… it is a great product.

So where will it work?

The Knog Scout backed up with a chunky lock gives you the great combination of a physical barrier, plus an audible alarm, plus a method of tracking. And I reckon that is about as good as its going to get for now. With this combination you have done everything you can. Oh, don’t forget insurance, because when all else fails… insurance is all you have left. (Singletrack Members get a nice Discount at Yellow Jersey Cycle Insurance).

This all sounds rather negative. However I absolutely love it, as it undoubtedly significantly reduces risk, and gives the owner a bit more peace of mind. It is an awesome product, you just need to use it with a lock and understand its limitations.


Protecting a £6,000 bike, whilst delivering increased peace of mind… all for £50. It’s incredibly good value. What’s more there must be other uses for this beyond bikes. Parenting perhaps? Do you want to know what time in the afternoon your teenager actually wakes up? Simply balance the Knog Scout on them while they sleep, and you will receive a notification when they wake up. They also receive 85 dBs, and everyone knows that teenagers love loud things. Win:win and everyone is happy.

What’s Next?

I think we have almost seen the future with the Scout. What we need now is for this style of tech to be incorporated into an E-bike as standard. It could be hidden deep in the frame, trickle charging off the main battery. Add the option to immobilise your E-bike from the app and you have everything covered.

Story tags

Review Info

Brand: Knog
Product: Scout
Price: £49.99
Tested: by Charlie for 7 weeks
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Author Profile Picture
Charlie Hobbs

Merch & Marketing Manager at Singletrack

Grumpy, happy, hairy, overweight and awesome. I started riding offroad in 1978, and never stopped. I was once Charlie The Bikemonger, I invented orienBEERing, the Clunker Classic, and the Dorset Gravel Dash. I own the Bum Butter brand and I'm a co-owner of Dirt Dash Events. I also work at Singletrack, I have the self-appointed job title of "Overlord of the leftovers" and look after the merch shop, and marketing. Other interests include skateboards, surfboards, motorbikes, and cooking (I invented the Beefer Reefer).

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Viewing 18 posts - 1 through 18 (of 18 total)
  • Knog Scout Bike Alarm and Finder
  • voodoo-rich
    Full Member

    another i-phone only gadget… yawn. and uses charger lead that doesn’t fit iphone 🙂

    Full Member

    Does it work with multiple users/phones or is it limited to one like the airtag?

    Full Member

    if its an airtag ‘item’ then I suspect it’ll be the single user.

    Full Member

    It does beg the question as to whether a stealth device (airtag) isn’t a better solution. There’s a 50% chance that the thief does not have an iphone and, if you don’t report it “lost” you can pick up its location whenever someone with an iphone chances by it. Even if you do report it lost, say waiting until 2am when it might ping a sleeping person’s iphone, a stealth device is going to take some time to find and remove. The alarm and size of the Knog will attract immediate attention to removal, probably with vice grips. Still waiting for eMTBs with integrated lighting, alarms/tracking/disabling and USB ports.

    Free Member

    Looks good to me, I’m seriously ocnsidering one for my son to use on his getting-around bike while at Uni.

    Also, do I need to apologise for laughing (I still am) at this line: “Would it have stopped Hannah and Amanda’s snatch?” ? Sorry, if so 😛

    Full Member

    Horrible thing to think but, I think that every advance in on-bike security leads us ever closer to theft with violence.

    Full Member

    I don’t understand products like this, is supposed to be a deterrent or preventative or aid in retrieval?  – it just draws attention to itself with the alarm and yellow case and could be removed very quickly.

    Wouldn’t a hidden airtag and seperate alarm be a better solution??

    Full Member

    I don’t understand products like this, is supposed to be a deterrent or preventative or aid in retrieval?

    That’s literally all explained in the article!

    – it just draws attention to itself with the alarm and yellow case and could be removed very quickly.

    As is an actual photo of the security bolts and special removal tool.

    Full Member

    As is an actual photo of the security bolts and special removal tool.

    And can be removed very quickly by any tooled up thief. I’ve had frames cut through in the past a couple of bottle bolts won’t take 10seconds to pop off a frame.

    That’s literally all explained in the article!

    I know – but imo it does none of the above, other than the occasional opportunistic thief this (and similar) products seem pointless. As I said, seperate hidden airtag and keep the hi Vis alarm (as a deterrent/ distraction) would be more sensible.

    Free Member

    I have one for the road bike, mainly for the coffee stops, bike is locked up, but when you are in bluetooth range you know if anyone moves the bike on your phone, can turn the alarm off on the device.

    More for piece of mind really.

    Full Member

    I think until these are either integrated into ebikes or can work while being stashed inside the actual frame then they’ll only really deter the odd Gary who was walking past.

    As said in the article, proper organised thieves will just belt the thing with a hammer to kill it or just sling it in the back of a van and Foxtrot Oscar regardless of the noise. I mean these are the kind of people that come tooled you with bolt croppers and power tools if they want to.

    Maybe something that’s attached to a thunder-flash or stun grenade might work. But then there’s a legal aspect to that.

    Or take a big dog to the shops with you each time and chain ‘Fluffy’ up to the bike.

    Full Member
    Full Member

    I saw a video online the other day of two lads outside a busy station in broad daylight cutting a lock off a bike with a portable angle grinder. faces uncovered, zero **** given. took them about 60s and gone.

    get this if you want, but don’t be under any illusion it’ll stop your bike from getting stolen.

    Full Member

    In addition with a Spesh bike, the motor can be turned off/rendered useless with the Mission Control app.

    Full Member

    but don’t be under any illusion it’ll stop your bike from getting stolen.

    Surely no one believes that ANY security device will prevent your bike being stolen – no?
    What any device/lock/scheme will do, including this one, is reduce the risk. By how much, is a worthy debate, but suggesting that any security device will do nothing is not really useful – or true.

    Free Member
    Free Member

    For me it’s a useful deterrent if you’re using a Seasucker or similar.

    Particularly if you’re stopping at a service station with your bike on the roof.

    Free Member

    I enjoyed this review of the Android one

    “I use it very conveniently, for example when I have to stop at a convenience store for a while.” or at a public convenience? 😆

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