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-   -   Indexing at the derailleur -- what's old is new? (https://www.bikeforums.net/classic-vintage/1119681-indexing-derailleur-whats-old-new.html)

icepick_trotsky 08-24-17 11:30 AM

Indexing at the derailleur -- what's old is new?
 
I was reading a writeup on the new Rotor Uno hydraulic groupset. Truly wild stuff. Uses hydro lines instead of cables for the derailleurs. Rotor Uno: First ride review | Cyclist

What struck me was that the indexing functions are at the derailleur, not in the shifter. Didn't Suntour have a couple derailleurs that worked that way?

Bianchigirll 08-24-17 11:31 AM

Isn't that how Positron worked?

dweenk 08-24-17 11:59 AM


Originally Posted by icepick_trotsky (Post 19815195)
I was reading a writeup on the new Rotor Uno hydraulic groupset. Truly wild stuff. Uses hydro lines instead of cables for the derailleurs. Rotor Uno: First ride review | Cyclist

What struck me was that the indexing functions are at the derailleur, not in the shifter. Didn't Suntour have a couple derailleurs that worked that way?

We've been there haven't we. We'll see how this all works out.

higgins617 08-24-17 12:01 PM

Wasn't there also a compressed air system for downhill MTBs a while back too?

dabac 08-24-17 12:08 PM

Shimano positron with the single-strand wire did indeed have the index by the derailer.
As did Sachs Commander.
Positron might have been more successful if they hadn't used markings on the shift lever - which never lined up to which gear the chain was on.


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