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PostPosted: Mon Jul 23, 2012 8:24 pm 
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i don't know what else to call it, but i have seen them on a few different bikes, and am wondering their purpose and effect. i have seen them on different brands of rd's, so assume it is an aftermarket thing.

anyone know what i am talking about?


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PostPosted: Mon Jul 23, 2012 9:12 pm 
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You probably mean a tool which is centered at the RD hanger before installing the RD. You install the rear wheel and by turning the tool around you can measure but also help to install a perfect parallel to the rear wheel and casette mounted hanger and afterwards a perfect alinged RD.
Or does some other kind of adapter exist ?

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Posted: Mon Jul 23, 2012 9:12 pm 


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PostPosted: Mon Jul 23, 2012 9:30 pm 
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nope, it is something that is installed onto the rear der and used while riding. it looks like it allows a tight 90 degree bend for the cable while possibly reducing the friction normally caused by such a tight bend (at least that is my guess).


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PostPosted: Mon Jul 23, 2012 9:51 pm 
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Image

This thing? the avid rollermajig...

not sure, but i think they do not make it any more.

Oren


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PostPosted: Tue Jul 24, 2012 12:16 am 
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Jtek shiftmate?

Image


It lets you run Shimagnolo shifting/drivetrain:
http://jtekengineering.com/shiftmate.php


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PostPosted: Tue Jul 24, 2012 12:49 am 
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cool, that makes sense...thanks for the answers!


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Posted: Tue Jul 24, 2012 12:49 am 


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PostPosted: Tue Jul 24, 2012 1:24 pm 
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Joined: Mon Mar 26, 2012 2:45 pm
Posts: 113
Location: Bali, Indonesia
Another shot of a Jtek shiftmate on my Cervelo. Campy Chorus 10 speed shifters DA 7800 RD and Ultegra 12-27 9 speed cassette. Very smooth.

Attachment:
RS RD Shiftmate.JPG
RS RD Shiftmate.JPG [ 17.85 KiB | Viewed 522 times ]


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