Re: [CR] Simplex Demultiplicator, was For sale items 23/2/01

Date: Fri, 23 Feb 2001 16:45:39 +0000
Subject: Re: [CR] Simplex Demultiplicator, was For sale items 23/2/01
From: "Hilary Stone" <>
To: Donald Dundee <>,,

Yes both Ken and Phil are right ­ I didn't think carefully through what it did exactly. It's still a very neat talking piece to have on your bike. Hilary Stone

Ken Denny wrote:
> What it actually does is add an additional lever within the shifting system,
> thereby decreasing the force required to shift the downtube lever.
> Theoretically, the more levers that are added to a system, teh less work is
> required. I think they are pretty nifty and are especially handy for barcon
> systems.
> Phil Brown wrote: This device doesn't increase cable travel, it decreases it, allegedly
>>greater feel at the lever. I have one on a bike and it does exactly that.
>>Those wacky French, go figure.

>> >Have tracked down another Simplex Demultiplicator Relais c1960 NOS, mint
>> >This is a little widget that increases the cable travel for the rear
>> >derailleur. It is fitted to the bottom of the down tube - the cable from
>> >the
>> >shift lever is connected to one side and a second cable is connected from
>> >the other side of the levver to the rear derailleur. On the other side
>> >of
>> >the clip there's short tunnel for a front derailleur inner cable. Rare
>> >and
>> >excellent mystery object! $40