Go Back  Bike Forums > Bike Forums > Classic & Vintage
Reload this Page >

Indexing at the derailleur -- what's old is new?

Notices
Classic & Vintage This forum is to discuss the many aspects of classic and vintage bicycles, including musclebikes, lightweights, middleweights, hi-wheelers, bone-shakers, safety bikes and much more.

Indexing at the derailleur -- what's old is new?

Old 08-24-17, 11:30 AM
  #1  
icepick_trotsky 
Aspiring curmudgeon
Thread Starter
 
icepick_trotsky's Avatar
 
Join Date: Aug 2014
Location: Saint Louis
Posts: 2,667

Bikes: Guerciotti, Serotta, Gaulzetti

Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 103 Post(s)
Likes: 0
Liked 3 Times in 3 Posts
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?
__________________
"Party on comrades" -- Lenin, probably
icepick_trotsky is offline  
Old 08-24-17, 11:31 AM
  #2  
Bianchigirll 
Bianchi Goddess
 
Bianchigirll's Avatar
 
Join Date: Apr 2009
Location: Shady Pines Retirement Fort Wayne, In
Posts: 27,328

Bikes: Too many to list here check my signature.

Mentioned: 142 Post(s)
Tagged: 2 Thread(s)
Quoted: 1940 Post(s)
Liked 721 Times in 455 Posts
Isn't that how Positron worked?
__________________
Bianchis '90 Proto, '90 Campione del Fausto Giamondi Specialisma Italiano Mundo, '91 Boarala 'cross, '93 Project 3, '86 Volpe, '97 Ti Megatube, '93 Reparto Corse SBX

Others but still loved; '80 Batavus Professional, '87 Cornelo, '?? Jane Doe (still on the drawing board), '90ish Haro Escape SLX Bertoni "Speckled Trout"
Bianchigirll is offline  
Old 08-24-17, 11:59 AM
  #3  
dweenk 
Senior Member
 
dweenk's Avatar
 
Join Date: Mar 2013
Location: Maryland
Posts: 3,636

Bikes: 1972 Fuji S-10-S,1970 Raleigh Sports, and more

Mentioned: 49 Post(s)
Tagged: 0 Thread(s)
Quoted: 762 Post(s)
Liked 153 Times in 112 Posts
Originally Posted by icepick_trotsky View Post
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.
__________________
"The man who does not read has no advantage over the man who cannot read." –Mark Twain
dweenk is offline  
Old 08-24-17, 12:01 PM
  #4  
higgins617
Senior Member
 
Join Date: Jan 2010
Location: mass
Posts: 251

Bikes: '74 Fuji The Ace, '07 S-Works Epic, 88? Hardrock.... A whole bunch more

Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 40 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Wasn't there also a compressed air system for downhill MTBs a while back too?
higgins617 is offline  
Old 08-24-17, 12:08 PM
  #5  
dabac
Senior Member
 
Join Date: Mar 2008
Posts: 8,453
Mentioned: 45 Post(s)
Tagged: 0 Thread(s)
Quoted: 1000 Post(s)
Liked 196 Times in 147 Posts
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.

Last edited by dabac; 08-24-17 at 12:11 PM.
dabac is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
icepick_trotsky
Classic & Vintage
15
01-23-15 05:27 PM
Sixty Fiver
Classic & Vintage
31
08-07-13 03:42 PM
BloodMoonGrrl
Bicycle Mechanics
6
05-22-11 07:49 PM
Capecodder
Classic & Vintage
12
11-01-10 05:01 AM
CyclistNewb
Classic & Vintage
4
07-12-10 08:28 PM

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright © 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.