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Is this a bike thing? What is it?

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Is this a bike thing? What is it?

Old 11-22-23, 04:11 PM
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Originally Posted by Robvolz
Itís really a bike part??

yowzers.

should have it bronzed

i canít wait to get back and see if the rest is there

tell me about the cable??
Bet the cable is the "gear change", it allows that linear pull arm (attached to chain) go to another pawl and changes the leverage equation.
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Old 11-22-23, 04:27 PM
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Originally Posted by Erzulis Boat

Motherfu**in Scotland Yard here boys!

Transfer system for bicycles!!!!!!!!!!!!!!!!!!!!!!

Nice work! I have posted Alenax bikes here before, but it never would have occurred to me that's what it was, how in the heck did you get there?
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Old 11-22-23, 04:31 PM
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Originally Posted by SoCaled
Nice work! I have posted Alenax bikes here before, but it never would have occurred to me that's what it was, how in the heck did you get there?
The 3 "lightening" holes were driving me crazy. It couldn't be aircraft, so what else tries to be lighter? Could it really be some obscure bike thing?

I just went down the rabbit hole into oddball bikes, and holy smokes, it popped up.

ETA- What I thought were lightening holes are anchor points to mate to the crank arm, so I just accidentally got lucky.
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Old 11-22-23, 04:57 PM
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https://offerup.com/item/detail/26b1...alenax&cid=7.4
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Old 11-22-23, 06:00 PM
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Should have gone straight to Sheldon.

https://www.sheldonbrown.com/brandt/alenax.html
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Old 11-22-23, 06:05 PM
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Perfect for Cino!!!!!



Last edited by Robvolz; 11-22-23 at 06:09 PM.
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Old 11-22-23, 06:25 PM
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Originally Posted by Erzulis Boat

Motherfu**in Scotland Yard here boys!

Transfer system for bicycles!!!!!!!!!!!!!!!!!!!!!!

Well done! You win the Internet today!
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Old 11-23-23, 11:35 AM
  #58  
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amazing work, Mr. Boat!
But I'm certain there must be some way to kludge this into some kind of an emergency brake...
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Old 11-23-23, 05:12 PM
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Pretty cool that the mystery part was identified as part of the Alenax!
By chance, I recently watched a video of a similar, but more modern, version called the String Bike.

It's amazing how people keep thinking up this sort of drivetrain and taking it to production, but without the benefit of knowing that these sorts of things have been designed before and failed in the marketplace. The excitement of creating something cool seems to prevent some folks from doing any sort of market research, apparently.


Steve in Peoria
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Old 11-23-23, 05:14 PM
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Originally Posted by hazetguy
it's an instrument that not only supplies inverse reactive current for use in unilateral phase detractors, but is also capable of automatically synchronizing cardinal gram meters.
Are you sure it's not ordinal gram meters?
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Old 11-23-23, 05:51 PM
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You could turn it into a knife handle!
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Old 11-23-23, 10:26 PM
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So it was one of those new inventions that was going to totally revolutionize bicycles.
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Old 11-24-23, 10:52 AM
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Originally Posted by SPlKE
So it was one of those new inventions that was going to totally revolutionize bicycles.
I happened to recall that a similar drive train is featured on the cover of the book "The Bicycle" by Pryor Dodge. This novel bike is the Levocyclette Terrot, dating back to 1909. It uses a similar method of changing the effective gear size. 1909 was still the era when folks were still trying out all manner of clever and novel ideas for improving the basics of bicycle design.
Like oval chainrings, people keep thinking up the same idea and assuming that they were the first ones.

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Old 11-24-23, 12:57 PM
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Originally Posted by steelbikeguy
Like oval chainrings, people keep thinking up the same idea and assuming that they were the first ones.
well maybe so for those pikers.

But I'm going to be first in the market with my completely revolutionary wheel re-imagined and redesigned!
I won't reveal the incredible breakthrough I have made, but here's a hint: this wheel is NOT that boring old outdated round shape...

Operators are standing by to take your orders. Don't delay!
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Old 11-24-23, 02:16 PM
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Originally Posted by unworthy1
well maybe so for those pikers.

But I'm going to be first in the market with my completely revolutionary wheel re-imagined and redesigned!
I won't reveal the incredible breakthrough I have made, but here's a hint: this wheel is NOT that boring old outdated round shape...

Operators are standing by to take your orders. Don't delay!
I think you meant to say "Operators are standing by to take your money".

That reminds me of another great idea that keeps getting reinvented... the hubless wheel. This is where the there is a huge hoop that is a bit smaller than the rim, and there are bearings between the hoop and the rim. Sure, it looks interesting, with a big hole where you would usually see a hub and spokes, but it ends up heavier and more expensive, etc.

There's a nice, brief BBC article that explains "The magic of a hubless, or more accurately centre-less, wheel is that they aren't actually lacking a hub".

As an engineer, I fully understand the fun of designing stuff and seeing it turn into a useful item. I suspect that's what causes these things to be reinvented time after time. Someone should tell them to check the patent office to see if it's been invented before, or check some old books. If nothing else, they should talk to an engineer and find out that you don't want to actually take a product to production, because that means dealing with customers.

Steve in Peoria
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Old 11-24-23, 02:21 PM
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Originally Posted by steelbikeguy
Pretty cool that the mystery part was identified as part of the Alenax!
By chance, I recently watched a video of a similar, but more modern, version called the String Bike.

It's amazing how people keep thinking up this sort of drivetrain and taking it to production, but without the benefit of knowing that these sorts of things have been designed before and failed in the marketplace. The excitement of creating something cool seems to prevent some folks from doing any sort of market research, apparently.

https://www.youtube.com/watch?v=doKhd8kE0Ow

Steve in Peoria
Market Research Dept Report:
"You know what keeps more people from bicycling? The whole 'feet go 'round in a circle' thing. We should fix that."
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Old 11-25-23, 11:45 AM
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What could possibly go wrong? Alenax
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Old 11-27-23, 04:51 PM
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Oddly (or not), this showed up in my YouTube recommendations today. Mostly a horrible video, but from about the 1:30 mark you see how the mechanism works.


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Old 11-27-23, 06:05 PM
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Originally Posted by ManekiNico
Oddly (or not), this showed up in my YouTube recommendations today. Mostly a horrible video, but from about the 1:30 mark you see how the mechanism works.
wow.... I would have thought that it had more than 4 speeds.
I'm also surprised that that the creator of the video didn't just replace the bent screws instead of installing them in a less critical location.

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Old 11-28-23, 07:57 AM
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Amazing how many answers there are searching endlessly for their question
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Old 11-28-23, 12:01 PM
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I dare ya. In fact, I double-dog dare ya. No, I triple-dog dare ya!


Originally Posted by Robvolz
Perfect for Cino!!!!!


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Old 11-28-23, 01:05 PM
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When I worked in a bike shop on Long Island. NY, the Alenex salesman pitched the owner hard and we wound up with a few. I and other mechanics/sales tried to dissuade owner based on mechanical, parts availability and won't-sell reasons. We each really wanted to actually sell one once we did have them, but no takers.
I think the owner made some deal with someone because they all disappeared. I don't think we sold any to an actual customer.
If I remember correctly, there was some type of crazy reverse sprocket/freewheel on the NDS?
Anyone out there actually build one besides me?
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Old 11-28-23, 02:23 PM
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Originally Posted by Bianchi84
If I remember correctly, there was some type of crazy reverse sprocket/freewheel on the NDS?
It had a single-sprocket freewheel on each side of the hub, meaning there was no NDS.
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Old 11-28-23, 02:38 PM
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Originally Posted by madpogue
It had a single-sprocket freewheel on each side of the hub, meaning there was no NDS.
TRUE! I'm thinking chainring side as drive side. Anyway, it seemed to be a solution in search of a problem at that time. Man, I must just have repressed- memories of that system!
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Old 11-28-23, 02:45 PM
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Originally Posted by steelbikeguy
I think you meant to say "Operators are standing by to take your money".

That reminds me of another great idea that keeps getting reinvented... the hubless wheel. This is where the there is a huge hoop that is a bit smaller than the rim, and there are bearings between the hoop and the rim. Sure, it looks interesting, with a big hole where you would usually see a hub and spokes, but it ends up heavier and more expensive, etc.

There's a nice, brief BBC article that explains "The magic of a hubless, or more accurately centre-less, wheel is that they aren't actually lacking a hub".

As an engineer, I fully understand the fun of designing stuff and seeing it turn into a useful item. I suspect that's what causes these things to be reinvented time after time. Someone should tell them to check the patent office to see if it's been invented before, or check some old books. If nothing else, they should talk to an engineer and find out that you don't want to actually take a product to production, because that means dealing with customers.

Steve in Peoria
I'd be surprised if the creators of the stringbike drivetrain were NOT familiar with predecessors like the Alenax. We live in the Information Age, after all. If anything, the Alenax would have likely showed up in a patent search. One clear improvement of the stringbike over the Alenax is the full rotation of the pedals; the Alenax seemed to have very limited range of motion.

I low-key love inventors tilting at windmills. Lots of crazy idea and every once in a while an idea sticks.
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