Re: [CR] Suntour and indexing- Now, older RD and indexing

(Example: Production Builders:Frejus)

From: "Sean Flores" <seaneee175@gmail.com>
In-Reply-To: <1F1ABEA171394E049FE7F87FB9DFEFD5@ddddPC>
Date: Tue, 23 Mar 2010 12:22:09 -0700
References: <mailman.4702.1269302255.544.classicrendezvous@bikelist.org> <17FA6094-AE8C-4522-83FC-853930657C7C@gmail.com>
To: c r <classicrendezvous@bikelist.org>
Subject: Re: [CR] Suntour and indexing- Now, older RD and indexing


This brings up a nice subject.

What other combinations of non-indexing RD's have people been able to successfully run with indexing shifters? I'd love to find a solution for a Huret duopar or even a campy rally (knowing I'd have to add a barrel adjuster somewhere in the mix.

Sean Flores San Francisco, CA

On Mar 23, 2010, at 11:59 AM, David Snyder wrote:
> Haven't we seen examples of a couple of the very early derailer systems having an indexed lever? I can't recall which one(s), but I have a picture in my mind of a sort of sprung, toothed slider alongside the shift lever, a system that would be relatively easy to craft at home.
>
> On a related note, I recently got a '79 600 Arabesque derailer to nicely index a standard 6-speed using a 7-speed Accushift lever, much as a pre-'96 Dura-Ace derailer would function. I found this surprising in that every good index derailer is a slant parallelogram, while the early 600 is not. Conveniently, it even came with a barrel adjuster.
>
> David Snyder
> Auburn, CA usa
>
>
> ----- Original Message ----- From: "Sean Flores" <seaneee175@gmail.com>
> Subject: Re: [CR] Suntour and indexing .When ?
>
>
>> Out of curiosity, which model. Looking over disraeligears gears, it lists shimano positron in 1975 as the first real shot at indexing- with a few of the 333 models are early incarnations. As early as 1967, but it's attributed to the twist grip system with dual cables. Under this logic, Sturmey Archer 3sp and similar would be the first true click/index shifters, no?
>>
>> Sean Flores
>
>>> From: "kevin sayles" <kevinsayles@tiscali.co.uk>
>>> Subject: Re: [CR] Suntour and indexing .When ?
>>> To: "sean flores" <seaneee175@gmail.com>,
>>>
>>> I could be wrong here.......but if I remember correctly Sun Tour were the
>>> first to have indexing gears...even before Shimano, but they never perfected
>>> the system....and didn't patent it!?........so Shimano took off with the
>>> idea and got it right.
>>>
>>> Although the SunTour ratchet gear levers were/are a joy to use.