Instructables
Picture of Bike Spike-  theft deterrent.
IMGP4306.JPG
Hello,

Bike thieves are a pain in the bottom; I thought that I would get my own back.

Ladies and Gentlemen, I give you  . . . the bike spike.

When locking your bicycle in a dodgy area simply remove your saddle and replace it with the bike spike.

Please read on  . . .
 
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Step 1: Materials and tools

Picture of Materials and tools
A piece of wood and a chisel.

I took a piece of my Eucalyptus firewood.


Step 2: Making

I removed the bark and sharpened the stick into a point with a chisel( I also used a surform but it is not necessary).

I tried to stop myself but I could not resist putting on the inevitable blood splash.

I added a rim from a drinks can just to finish it off.


Step 3: Using

Picture of Using

Given a choice of bikes to steal it would be insane to steal the one with a big, bloody spike on it.

"They don't like it up 'em ".


Maybe I'm fooling myself but at the very least it gives passers-by a smile.


Happy Riding ( remove the spike first).

FOH
Nice "Dad's Army" quote!
FriendOfHumanity (author)  HelmutHound1 year ago
Stupid boy !
Don't panic!
FriendOfHumanity (author)  wobbler5 months ago

We're doomed !

FriendOfHumanity (author)  wobbler5 months ago

We're doomed !

artsynova5 months ago

Maybe just a THREADED―sharpened or not―piece of chisel wood of about 3 feet long that when riding goes on a holder (like surfers use to carry the surfboards. It wouldn't be a booby trap because is obvious to anyone, but the deterrent would be the time spent in undoing the stick. A thief needs the time to undo the thread.

Funny but illegal. It falls under the booby trap law. Not to mention if someone fell on it ud be in serious trouble! But still funny.
It's not designed to trap your booby. Or do you have a different riding style to me?
Booby traps are hidden, or have hidden triggers.

The author has even given a visual warning of the dangers!
+1

Everything in plain sight. You steel it. You ride it, You ouuuuuchhh!

Impracticable, but ...... niiiiiiiiice!
HA Believe it or not, I once had a seat stolen off my bike. The bike was locked up securely but the seat had one of those quick disconnect levers and someone stole it. I took that lever off when I put a new seat on.
You would be surprised how difficult it is to ride a bike without a seat.
It's even harder without wheels.
wobbler9 months ago
This is why you should never ride your bike when drunk.
markc3101 year ago
This is seriously funny.
Tempting, very tempting.
FriendOfHumanity (author)  markc3101 year ago
Do it, do it !
marple2001 year ago
Brilliant
FriendOfHumanity (author)  marple2001 year ago
Thanks man.
FriendOfHumanity (author)  marple2001 year ago
Thanks man.
Teachable1 year ago
This is not safe for innocent people walking by if this is in public. There are laws against this called mayhem laws. You could cause a child or adult to lose their eye or kill themselves.
FriendOfHumanity (author)  Teachable1 year ago
Natural selection ?
mholland21 year ago
I can think of something else to use in its place that would deter lots also...unless they were into that kind of thing in public. It'd also not dangerous at all lol. Thanks for the laugh)
FriendOfHumanity (author)  mholland21 year ago
Dear Mholland,

Tee hee hee; Your comment made me think of the film , " men who stare at goats".

Actually, I think that your idea would work better than the spike; people would not go near  it..
I would have to wait until the cover of darkness to collect my bike though.

Kind Regardski

FOH
I meant 'burn after reading', not 'Men who stare at goats',
mdaniel51 year ago
Ya defiantly not a booby trap. A good idea to keep kids from taking your bike for a joy ride, oh wait that's the car, can you make one for a car?
FriendOfHumanity (author)  mdaniel51 year ago
Hello, did you read the comment left by Drakekay  ?
They left this link. . .  I think you'll like it.

http://www.youtube.com/watch?v=7U4ZYOBzEEs
Kiteman1 year ago
I saw this, and I ... clenched!
FriendOfHumanity (author)  Kiteman1 year ago
Look at it every day and by the end of the week you will be toned and fit.

http://www.livestrong.com/article/483140-what-happens-when-you-do-butt-clenches-in-your-seat/
blkhawk1 year ago
Instead of Friend of Humanity you should name yourself Vlad Drakul or Vlad the Impaler. This Romanian king impaled thousands of his people and when the armies of his enemies saw this they were horrified.
FriendOfHumanity (author)  blkhawk1 year ago
Dear Bihawk,

You may be onto something; when I was a child I had The Hamilyn Book Of Horror that featured among others Vlad the Impaler and the Countess Bathora.
I seem to remember that Vlad also invited all the tramps and gypsies to a huge banquet in a Hall and then locked the doors and burned it down; he wasn't nice.

Maybe this bike spike is a latent effect of reading the book in my formative years.

Best Wishes

FOH


Drakekay1 year ago
haa haa this reminds me of the MagnaVolt car anti theft device from Robo cop!!! :D
http://www.youtube.com/watch?v=7U4ZYOBzEEs
FriendOfHumanity (author)  Drakekay1 year ago
Shocking!
Reffner1 year ago
What's to stop someone from picking it up and throwing it in the back of their truck?
FriendOfHumanity (author)  Reffner1 year ago
Dear Reffner,

Nothing will stop determined professional bike thieves with cutting equipment.

Hopefully this spike would deter the small time thief who steals bikes individually; given a choice of bikes, mine would seem the less desirable.

I am willing to accept the view though, that this will do nothing to stop my bike being stolen.


Kind Regards

FOH
jdrach851 year ago
Wouldn't the thief be able to remove the spike, or am I missing something?
Only if you carry a hex key around with you...
verence1 year ago
Far too lazy to do that, but exactly what to I would like to happen to whoever steels my bike. XD