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Which IGH can you bolt a sprocket to the non-drive side?

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Which IGH can you bolt a sprocket to the non-drive side?

Old 11-25-17, 11:54 PM
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Which IGH can you bolt a sprocket to the non-drive side?

Basically, I'd like to use an internal gear hub as a transmission on my velomobile. I looked at the Sturmey-Archer S3X, but you can't bolt anything on the non-drive side. So, what I'm looking for is an internal gear hub that allows you to affix a sprocket to the non-drive side.
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Old 11-25-17, 11:59 PM
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Anything with a disk brake mount and this sprocket: VeloSolo Shop - Disc Hub Mount Cogs and Accessories

How many speeds do you want on the IGH?
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Old 11-26-17, 12:09 AM
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as posted. Yeah, IGH with disk rotor mounting.
bolt a cog where the disk rotor would go

here's another disk mountable cog option:
https://www.amazon.com/Origin8-Ultim.../dp/B00TG3BOUW
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Old 11-26-17, 02:59 AM
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Originally Posted by Jeff Wills View Post
Anything with a disk brake mount and this sprocket: VeloSolo Shop - Disc Hub Mount Cogs and Accessories

How many speeds do you want on the IGH?
The frame's going to be VERY heavy (estimated over 100kg when all is said and done), so I'd probably want something with a lot of speeds?
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Old 11-26-17, 08:06 AM
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Cogs can also be mounted to the spoke flanges. Lots of mid drives were set up that way.
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Old 11-26-17, 10:33 AM
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Originally Posted by Dan Burkhart View Post
Cogs can also be mounted to the spoke flanges. Lots of mid drives were set up that way.
How would you do that?
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Old 11-26-17, 11:16 AM
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Does it need to be on the non drive side to line up with whatever drive is on your rear Axel? If you can move the Axel sprocket you can go with a regular trike hub. I just played with that idea recently. It's between my single front sprocket and 7sp cluster on the rear, mimicking having a triple up front. I've seen 5sp versions also.
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Old 11-26-17, 11:29 AM
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Rohloff uses 4 chain ring bolts to hold its disc on (65mm bcd) , and there is a MTB chainring that is that pattern, 64mm bcd

https://www.bing.com/images/search?q...FC&FORM=IQFRBA
Some builders used the hub as a mid drive in long travel full suspension MTB, (before Pinion gear box came out)

the builder used the left drive chain to a left sprocket , on the rear hub.

there are 6 bolt chainrings, not common, (post #2) but then you can use those with other disk brake mounts ..


My child hood friend's dad put a 2nd 3 speed , up on top of the rear triangle, crank to the cog on the driver,
a 2nd, hubshell chain ran to the rear wheel, another 3 speed..





....

Last edited by fietsbob; 11-27-17 at 04:30 PM.
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Old 11-26-17, 11:34 AM
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Originally Posted by MrInitialMan View Post
How would you do that?

now you just buy them like that,, its how upright trikes get 3 speeds, Sturmey-Archer | TS-RC3
a hub out of a wheel with the 2nd hubshell chain turning the axle that the right wheel is attached onto.





....
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Old 11-26-17, 12:41 PM
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Originally Posted by MrInitialMan View Post
How would you do that?
Start with a cog that's larger than the spoke flange, preferably flat, (non dished), drill holes to match the spoke holes, and bolt 'er up.
Some old timey steel shell hubs used to have the output cog welded on.
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Old 11-26-17, 01:21 PM
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Or hire a Laser cutter... they can cut the teeth and burn the 18 holes in a stainless steel sheet,
to screw or poprivet the cog onto the hubshell flange..
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Old 11-26-17, 02:01 PM
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Originally Posted by Dan Burkhart View Post
Start with a cog that's larger than the spoke flange, preferably flat, (non dished), drill holes to match the spoke holes, and bolt 'er up.
Some old timey steel shell hubs used to have the output cog welded on.
Huh. OKay. I was told that such a method would tear the flange apart, but I guess flanges are sturdier now.
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Old 11-26-17, 02:42 PM
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Originally Posted by MrInitialMan View Post
Huh. OKay. I was told that such a method would tear the flange apart, but I guess flanges are sturdier now.
Flanges are made to stand up to spoke tension, so a cog mounted to it shouldn't tear it apart.
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Old 11-26-17, 02:50 PM
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Un known is your skills at combining those pieces of course. Sturmey Archer Still makes a steel hubshell AW3

though I expect the aluminum hub shell hubs sell better these days..
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Old 11-26-17, 04:09 PM
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Originally Posted by fietsbob View Post
Rohloff uses 4 chain ring bolts to hold its dick on ,
uhhh

is this some bike mechanic terminology i don't know about?

lol
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Old 11-26-17, 04:23 PM
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Well auto correct missed that one..
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Old 11-27-17, 06:18 AM
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I think the first reply nailed it. I'd only add that most IGHs these days use a centerlock disc mount, but you can just use an adapter.
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Old 11-27-17, 01:46 PM
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may be of help



search velomobile build on youtube
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Old 12-01-17, 05:48 AM
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So what makes and models would you recommend?
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Old 12-01-17, 09:19 AM
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Originally Posted by MrInitialMan View Post
So what makes and models would you recommend?
3 speed not a fixed gear S3x..?
https://www.sturmey-archer.com/en/products/3-speed





Rohloff or Alfine 11 disc will cost more ...




Last edited by fietsbob; 12-01-17 at 09:32 AM.
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Old 12-01-17, 09:28 AM
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Cog on the hub flange, type ..Sturmey-Archer | TS-RF3
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