The random tandem thus far

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Wevil Kenevil

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Mar 4, 2022
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Yes yes Jerry I am interested !

Do you have any suggestions on how to do this? Is there anything I can reference as a pattern or are you suggesting that I devise a way to do it?

Something like a jackshaft but on the drive side?

I have a RX-RFS STURMY ARCHER would that do the same thing?
 
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Wevil Kenevil

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Mar 4, 2022
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Holy crap a 415 chain fits the sturmy archer sprocket!

It's a liiiiitle tight but I can work with it!

Jerry you're a genius! I never would have thought to do this... You rock bro!
 
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Tony01

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Nov 28, 2012
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You still would need to figure an output sprocket and another dropout to mid mount it somewhere like a jackshaft. I’d just go direct drive until you get the entire build situated. The jackshaft hub will add a great deal of complexity.
 
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Sidewinder Jerry

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Dec 19, 2011
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Yes yes Jerry I am interested !

Do you have any suggestions on how to do this? Is there anything I can reference as a pattern or are you suggesting that I devise a way to do it?

Something like a jackshaft but on the drive side?

I have a RX-RFS STURMY ARCHER would that do the same thing?
Here's the thread on the bike in the picture.


If I'm remembering it correctly Cannonball modified a the direct drive (2nd) causing the hub to no longer coast but act like a fixed gear in that it could go in either direction. Meaning you didn't have to cross over to the right side to drive the IGH; both sprockets could be put on the left side.

The Strumey Archer S3X is a fixed geared IGH. The 3rd gear is the direct drive. Therefore there's no need to go inside of the hub.

1) ⅝\1
2) ¾\1
3) 1\1

You can get a U bracket from Staton Inc. I can also show you a way to make this bracket twice as strong using unistrut.

 
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Wevil Kenevil

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Mar 4, 2022
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428
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Sack a tomatoes California
Here's the thread on the bike in the picture.


If I'm remembering it correctly Cannonball modified a the direct drive (2nd) causing the hub to no longer coast but act like a fixed gear in that it could go in either direction. Meaning you didn't have to cross over to the right side to drive the IGH; both sprockets could be put on the left side.

The Strumey Archer S3X is a fixed geared IGH. The 3rd gear is the direct drive. Therefore there's no need to go inside of the hub.

1) ⅝\1
2) ¾\1
3) 1\1

You can get a U bracket from Staton Inc. I can also show you a way to make this bracket twice as strong using unistrut.

This is brilliant! It may take some time, but I'm building one. Thank you for bringing this to my attention because I got that sturmy in a trade and it's just been sitting here and this is perfect!
 
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Wevil Kenevil

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Mar 4, 2022
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Sack a tomatoes California
I've cut the back crank down and welded the two back chain rings together..... and added an .... Amplifier :confused: to my tail pipe. I will try and make a video... It's a 12 inch aluminum cylinder out of an oxygen purifier. (It holds the granuals that purity the compressed air) . I cut it to fit on my f2 thruster pipe.

It sounds like a 125cc and I got top end for days... Let me see if I can upload a video... Hang on.

There's some photos and I'm going to try to make a video so that you can hear what it sounds like right now.
 

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