Internal gear hub cable pull rates

[meb]

Anyone know of the cable pull rates for internal gear hubs, what ratio needed when adapting another shifter?

Sturmey 3 & 4 & 5
SRAM/Sachs 3 & 5 & 7 & 12
Shimano 3 & 4 & 7 & 8

Is there already an online database?

 

[Werehatrack]

On Sat, 5 Apr 2008 19:46:42 +1000, meb
<[email protected]> may have said:

>
>Anyone know of the cable pull rates for internal gear hubs, what ratio
>needed when adapting another shifter?
>
>Sturmey 3 & 4 & 5
>SRAM/Sachs 3 & 5 & 7 & 12
>Shimano 3 & 4 & 7 & 8
>
>Is there already an online database?

The SA 3-speed's step spacing is definitely not equal, and I've been
told that the same problem is found with some (perhaps all) of the
others. This may not be as straightforward as one would like.

--
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Typoes are not a bug, they're a feature.
Words processed in a facility that contains nuts.

 

[meb]

On Sat, 5 Apr 2008 19:46:42 +1000, meb
<[email protected]> may have said:

>
>Anyone know of the cable pull rates for internal gear hubs, what ratio
>needed when adapting another shifter?
>
>Sturmey 3 & 4 & 5
>SRAM/Sachs 3 & 5 & 7 & 12
>Shimano 3 & 4 & 7 & 8
>
>Is there already an online database?

The SA 3-speed's step spacing is definitely not equal, and I've been
told that the same problem is found with some (perhaps all) of the
others. This may not be as straightforward as one would like.

--
My email address is antispammed; pull WEEDS if replying via e-mail.
Typoes are not a bug, they're a feature.
Words processed in a facility that contains nuts.

Someone else had an opinion the Sachs/SRAM 3 speeds might not have a linear cable pull ratio as well.

If some do, it might be doable on a specific hub or shifter.