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This looks kinda neat, anyone tried this?

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This looks kinda neat, anyone tried this?

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Old 09-22-04, 03:54 PM
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This looks kinda neat, anyone tried this?

https://www.jtekengineering.com/shiftmate.htm
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Old 09-22-04, 04:18 PM
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By all reports it works well, but depending on your application you may not need it. I am running an Ultegra 9sp cassette with 10sp Ergos and a Campy rear derailleur with no shifting issues. However if you wanted to use Ergo levers with your Dura-Ace rear der. the Shiftmate would be more necessary unless you wanted to experiment with the alternate cable routing schemes some people have cooked up.
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Old 09-22-04, 04:34 PM
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About time someone came out with the 'travel agent' for the rear derailleur! But is the cam action accurate throughout the entire range?
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Old 09-22-04, 04:36 PM
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I do not think that that will work. all the "pulley" does is act as an idler...I don't see any Ratioing going on.....and I thought that the amount of cable movement was done in the indexed shifter. Curious
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Old 09-22-04, 04:43 PM
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Originally Posted by 1oldRoadie
....and I thought that the amount of cable movement was done in the indexed shifter. Curious
Well,the deralier throw ratio DOES have to match the shifter pull,unless you are using friction. That's the reason reason you can't typically mix and match campy/shimano shifters/rear derailers.There are also Sram RD that are only compatible with their specif series shiffters,while other Srams are compatible with shimano shifters.
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Old 09-22-04, 04:52 PM
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Originally Posted by 1oldRoadie
I do not think that that will work. all the "pulley" does is act as an idler...I don't see any Ratioing going on.....and I thought that the amount of cable movement was done in the indexed shifter. Curious

See https://www.jtekengineering.com/image...structions.pdf

The pulley is really two pulleys of slightly different diameter. The cable loops twice and crosses over from one side to the other, yielding a different pull ratio. A clever idea. Even Sheldon Brown likes it, and he has been selling mixed Shimano/Campy drivetrains for years.
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Old 09-22-04, 05:12 PM
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SWEEt, but if I go indexed .... wont they here me prepairing for the jump?
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Old 09-23-04, 07:41 AM
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Another thing I wonder is if you could mount it anywhere on the cable. it seems like it would get really dirty there. I wonder if it would be better to mount it near the handlebars to keep it cleaner.
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Old 09-23-04, 10:04 AM
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I don't think it makes any difference 'where' it's mounted.....but having it right at the derailleur seems to be the most logical spot.

It would be nice if an aftermarket company came out with an STI/ERGO type levers with a variable index rate feature built in.

George
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Old 09-23-04, 10:06 AM
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Originally Posted by The Fixer
I don't think it makes any difference 'where' it's mounted.....but having it right at the derailleur seems to be the most logical spot.

It would be nice if an aftermarket company came out with an STI/ERGO type levers with a variable index rate feature built in.

George
There is one. Modolo.
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Old 09-23-04, 10:42 AM
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Looks like it can only be installed at outer cable end, so either at down tube boss, or at the deraileur.
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Old 09-23-04, 01:05 PM
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Originally Posted by Zouf
Looks like it can only be installed at outer cable end, so either at down tube boss, or at the deraileur.
Technically, it can be mounted anywhere in-line as well, but that wouldn't make too much sense.


sydney..
Modolo?? I know the Morphos can be used on either 8 or 9 speed for instance, but will it index a Shimano cassette with a Campy derailleur or a Campy cassette with a Shimano derailleur?......I doubt it...

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Old 09-23-04, 04:09 PM
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Originally Posted by The Fixer
Technically, it can be mounted anywhere in-line as well, but that wouldn't make too much sense.
I was just think of how dirty that area of the bike gets, I was thinking it might function better if it was cleaner
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Old 09-23-04, 08:32 PM
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Originally Posted by The Fixer
but will it index a Shimano cassette with a Campy derailleur or a Campy cassette with a Shimano derailleur?......I doubt it...
The shifter does the indexing not the derailleur.
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Old 09-23-04, 09:08 PM
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Originally Posted by WorldWind
The shifter does the indexing not the derailleur.
Obviously! ......did you even take a look at this gizmo?

This little gizmo that we're talking about changes the rate/ratio of indexing........of course your shifter does the indexing. But you need to change this rate/ratio in order for cross-mix of brands, a Shimano STI, Shimano derailleur, and a stock Campy cassette for example to index properly.

George
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