Bike Security
- unjonharley
- Posts: 10243
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gyre wrote:My friend has a lot of trampoline springs.
He might donate them to a good cause if they would work.
the more you could have it fall apart.. the funnier it would be..
like the seat barely on.. the handle bars come off when the frame drops..
Elliots spring frame sounds like a lot of fun.. just lean it on the rack at center camp.. then laugh it up with spot lights and bull horns.. we could stand around in groups two or three.. that way the lights and bull horns would come from all directions..
- Elliot
- Posts: 7638
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- Camp Name: Elliot’s Bicycle Service
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And now, Ladies and Germs, for your wide-eyed amusement, allow me to present -- direct from Clearlake Mechaniacal Laboratorium -- The World’s Slowest Bicycle!

The sprocket on the crank has 14 teeth, and the one on the wheel has 50. (That works out to about 7 Gear Inches, for you old-school bike technicians.) The bike is perfectly rideable -- at a snail’s pace. The big sprocket on the crank is a dummy. The shift levers and cables are still on the handlebar, connected to nothing.
The bike is a plain Wally-World model, and the rear drop-outs happen to be horizontal for chain adjustment. Maybe I’ll hang a derailer there as camouflage anyway -- as on the front. It would also help to match the colors of the rear cogs, and I'm thinking about a big chain guard to go with the dummy front sprocket.
No derailers were harmed in the creation of this device. Both existing derailers had already been boogered beyond repair by persons unknown. The bike can easily be returned to normal service.
I’ll call it Bait Bike number 1.
The self-activating coaster-brake wheel turned out be for a 27â€
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No phones, tobacco, or politics in our public areas, please
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- Tiahaar
- Posts: 1134
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- Camp Name: Starship Palomino
- Location: Mojave Desert, CA (also Forever via Pandora)
MWAAHAHAH!! Loving this thread!
Elliot you have a devious side to you. Dang you could pedal up Everest with the gearing on that creation.
OK, howabout a bike with the headset/handlebars welded to straight-ahead? Any attempt to ride would swiftly end up with bike and rider on its side...there would be no way to balance the thing while pedaling.

OK, howabout a bike with the headset/handlebars welded to straight-ahead? Any attempt to ride would swiftly end up with bike and rider on its side...there would be no way to balance the thing while pedaling.
Burning Man 2003-17; Desert Carillon, HypnoHorse, Ulaume's Chimes, Iron Native, Black Rock Solar, Portal Collective, Center Camp Café Stage and Sound Tech, 747 Project
Starship Palomino
Starship Palomino
- Elliot
- Posts: 7638
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- Camp Name: Elliot’s Bicycle Service
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I could add a self-applying brake to the Slow Bike. Then he wouldn't get far even if he had lots of time.
As for locking the steering, I'm afraid it would be instantly noticable; even before mounting. But it might be worth a try. Wouldn't even need to weld it -- just overtighten the bearings.
But let me tell you about a bike that was built by -- if I remember correctly -- the CycleCide guys in San Francisco: They welded a second steering-head tube in front of the original one. The fork is in one tube and the handlebar is in the other. The two are connected by gears, which reverses the rotation. That thing is a real bastard to ride!
Oooh... I just had a thought: The Bait Bikes could be locked with very flimsy chains -- the kind that is meant for decorative use and can be pulled apart by hand. That would make the bike an Easy Target, and still demonstrate Evil Intent.
EDIT: Yes, yes! The Underdriven (Slow) Bike was 007's idea! Credit where credit is due!

Elliot's Naked Bicycle Service, Healing Arts, Body Paint & Piano Bar
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No phones, tobacco, or politics in our public areas, please
Bike come unglued? Take it to the nude dude!
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- Elliot
- Posts: 7638
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- Camp Name: Elliot’s Bicycle Service
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Moving right along:
I forget whose idea this was; please speak up!

It is not finished, but it will definitely work. Three inches of frame were removed. It feels like even less might work better.
The fit of the spring inside the frame tubing is better than it looks, because the tubing is oval -- actually, teardrop shaped. The top tube is a tight fit, so all it needs are stops to keep it from sliding further together. The down tube is a sloppy fit, but the scrap from the top tube fits perfectly inside it! The down tube tries to pull apart, but can be restrained with steel cable or some such. Wrap with fake fur, and the Rubber Bike will be ready.

Elliot's Naked Bicycle Service, Healing Arts, Body Paint & Piano Bar
No phones, tobacco, or politics in our public areas, please
Bike come unglued? Take it to the nude dude!
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No phones, tobacco, or politics in our public areas, please
Bike come unglued? Take it to the nude dude!
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- unjonharley
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- Fire_Moose
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- Elliot
- Posts: 7638
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- Camp Name: Elliot’s Bicycle Service
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All done. The oval tubing turned out to be an advantage: On the down-tube I ran bolts thru the "tail of the teardrop", which clamped the spring nicely in place.

It feels like it could be ridden by a light person. But it collapses to the ground when I put my full weight on it.
Next!

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No phones, tobacco, or politics in our public areas, please
Bike come unglued? Take it to the nude dude!
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- Elderberry
- Moderator
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Looks good. I'd like to reserve my front seat in the gallery right now! Should be interesting, to say the least.
JK
JK
JK

http://www.mudskippercafe.com
When I was a kid I used to pray every night for a new bicycle.
Then I realized that the Lord doesn't work that way so I stole one and asked Him to forgive me

http://www.mudskippercafe.com
When I was a kid I used to pray every night for a new bicycle.
Then I realized that the Lord doesn't work that way so I stole one and asked Him to forgive me
- Elorrum
- Posts: 5385
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penguin wrote:Or maybe rather that just cutting it so it collapses you could cut short pieces out of strategic places in the frame and replace the missing section with a length of spring. You make the spring strong enough so it'd do fine if you walked the bike, but as soon as someone jumped on it would bend every which way in a number of places.
Thanks to Penguin on the spring frame idea.
Elliot, some fine work there.
- Elliot
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The Spring Frame Bike does indeed seem to behave exactly as Penguin suggested. A light-weight neighbor of mine tried it -- he's maybe 150 pounds -- and he did not notice anything wrong until he applied force to a pedal. Perfect for our purpose, it would seem.

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No phones, tobacco, or politics in our public areas, please
Bike come unglued? Take it to the nude dude!
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- Elliot
- Posts: 7638
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- Camp Name: Elliot’s Bicycle Service
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Don't know. She slapped me and stormed out of the bar, so I'll probably never find out.
Might be able to ride it!
But that reminds me.... I have an old 110 Volt powered original Excercycle. You sit on it, throw the switch, and hang on for dear life. When you reach for the off switch down where the front wheel would be, the handlebar meets you half way there and knocks all your teeth out. This stoopid thing has an adjustment for rider weight! Lemme find a pitchure....
Edit:

I snagged this photo off the interweb, but mine is just like it. Thoughts?
Elliot's Naked Bicycle Service, Healing Arts, Body Paint & Piano Bar
No phones, tobacco, or politics in our public areas, please
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No phones, tobacco, or politics in our public areas, please
Bike come unglued? Take it to the nude dude!
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- Elliot
- Posts: 7638
- Joined: Sun Dec 18, 2005 8:41 pm
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- Camp Name: Elliot’s Bicycle Service
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Yes! The machine is absolutely preposterous. I suppose the thinking was that the rider would get a workout by keeping up with the motorized movements, but I tried it ONCE and decided not to ever try again. And you've seen some of the things I happily ride.
I got it for 20 bucks and figured I could use some of the parts. Then I realized it may be valuable. The one in the photo had a price tag of $250,-.
Next... I think reversed pedals that unscrew themselves, but I need to do some Gainful Employment first.

Elliot's Naked Bicycle Service, Healing Arts, Body Paint & Piano Bar
No phones, tobacco, or politics in our public areas, please
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No phones, tobacco, or politics in our public areas, please
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-
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- Elliot
- Posts: 7638
- Joined: Sun Dec 18, 2005 8:41 pm
- Burning Since: 2006
- Camp Name: Elliot’s Bicycle Service
- Location: Clearlake, Northern California
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In which case I'm opening the bidding at $1.000,-.

What this thing actually reminds me of is the mechanical bull in a Country & Western bar.
Same thing, you say?


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No phones, tobacco, or politics in our public areas, please
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- penguin
- Posts: 535
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(Silly forum stopped notifying me of new posts...)
Elliot, the spring frame is exactly what I was imagining, looks great!
The only thing I've thought of recently is that since (from what I've seen) most people mount from the left side is to leave the left pedal side normal but on the right side either a) make the crank just spin free; or b) weld it in a fixed position.
Elliot, the spring frame is exactly what I was imagining, looks great!

The only thing I've thought of recently is that since (from what I've seen) most people mount from the left side is to leave the left pedal side normal but on the right side either a) make the crank just spin free; or b) weld it in a fixed position.
http://www.playafire.com <- my BM resource links - got any I can add?
- unjonharley
- Posts: 10243
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- Camp Name: Elliot's naked bycycel repair
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I'm liking the solid kick stand.
Drill and pin it so you can use the bike by removing the pin.
If you try to ride off. You only get one turn of the crank..
Add a cord attached to the frame. On the other end a knot droped into the spokes. Just drop the slack on the ground. If you try to walk away with the bike the cord winds around the axel..
If you want to use the bike remove the knot from the spokes..
Drill and pin it so you can use the bike by removing the pin.
If you try to ride off. You only get one turn of the crank..
Add a cord attached to the frame. On the other end a knot droped into the spokes. Just drop the slack on the ground. If you try to walk away with the bike the cord winds around the axel..
If you want to use the bike remove the knot from the spokes..
.jpg)
You may find some uses for the specialty locks.
There is at least one that acts as a pin that can be inserted into any housing.
Most locks will attach to a straight rod shaped correctly too.
This lock is designed for brake rotors, but has many other uses.
I have a trailer door lock that uses it through a steel bar to hold it in place.
It spins on the shackle too.
- Elliot
- Posts: 7638
- Joined: Sun Dec 18, 2005 8:41 pm
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- Camp Name: Elliot’s Bicycle Service
- Location: Clearlake, Northern California
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(Silly forum stopped notifying me of new posts...)
Happens to me too.
Kick-stand and pedals are both good candidates for "traps", yes.
A locking kick-stand might be a good legitimate locking method also -- just slip a regular padlock thru a hole in the right spot. I'll look into that.
On the subject of brake rotor locks.... Fancy bicycles with disc brakes can probably use a regular padlock thru the rotor.
But I think we need to get back to the exploding saddle and such.


Elliot's Naked Bicycle Service, Healing Arts, Body Paint & Piano Bar
No phones, tobacco, or politics in our public areas, please
Bike come unglued? Take it to the nude dude!
Website: http://www.elliotsbikes.org
Email: elliotsbikes@outlook.com

No phones, tobacco, or politics in our public areas, please
Bike come unglued? Take it to the nude dude!
Website: http://www.elliotsbikes.org
Email: elliotsbikes@outlook.com

- Elliot
- Posts: 7638
- Joined: Sun Dec 18, 2005 8:41 pm
- Burning Since: 2006
- Camp Name: Elliot’s Bicycle Service
- Location: Clearlake, Northern California
- Contact:

A Slow Bike Race would be cool.
And I see no reason why a bike could not be equipped with the Slow Ratio while keeping a couple of normal ratios functional. Would probably not be possible to shift the full range with derailers; at least not on the front, but that can be done by hand.
Start building something!

Elliot's Naked Bicycle Service, Healing Arts, Body Paint & Piano Bar
No phones, tobacco, or politics in our public areas, please
Bike come unglued? Take it to the nude dude!
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No phones, tobacco, or politics in our public areas, please
Bike come unglued? Take it to the nude dude!
Website: http://www.elliotsbikes.org
Email: elliotsbikes@outlook.com

Slow races are a traditional amusement with motorcycles, the more interesting involving obstacle courses.
There seem to be a lot with bicycles too.
http://www.youtube.com/watch?v=eJszjRB9EPY&NR=1
http://www.youtube.com/watch?v=3kfpkczK ... re=related
http://www.youtube.com/watch?v=5p4-kVD6 ... re=related
http://www.youtube.com/watch?v=UZV5c4d8 ... re=related
There seem to be a lot with bicycles too.
http://www.youtube.com/watch?v=eJszjRB9EPY&NR=1
http://www.youtube.com/watch?v=3kfpkczK ... re=related
http://www.youtube.com/watch?v=5p4-kVD6 ... re=related
http://www.youtube.com/watch?v=UZV5c4d8 ... re=related
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