Re: [CR] Triples and rod FD and two-wire RD's

(Example: Framebuilders:Dario Pegoretti)

From: "jaouen BAZIN" <jaouenbazin@free.fr>
To: Jan Heine <heine94@earthlink.net>, <classicrendezvous@bikelist.org>
Date: Sun, 22 Nov 2009 23:41:40 +0100
In-Reply-To: <a0623096ac72f5780d1c8@[67.100.222.170]>
Subject: Re: [CR] Triples and rod FD and two-wire RD's


Hello Jan,

"It's amazing that constructeurs like Rene Herse persisted so long with the Cyclo, which shifted quite well, but was a terrible pain to set up - especially if you run the cables in the open, rather than in housing with tension adjusters, as was the British (and pre-war French) practice."

I'm asked the same thing why Rene Hers use so long Cyclo rear derailleur. I guess is for two thing 1) simplicity, when something is simple is light and reliable 2) Tension of chaine auroud 40's 50's was a strong debate, with a cyclo and the long spring, tension of chaine is constant and the freewheel roling-up is better.

i'm agree with you Nivex 5 speed is better but more heavier. To a better shift with a cyclo, the TA-Herse shifter is nice.

About triple chainring i think around 40's is very rare and 50's not common, and double chainring is usualy 50(49,48) and 30 enougth in 40's. I never see Duravia with triple chainring.

I think Rosa (1st type) was the 1st front derailleur, i see one on a 1934 catalog, probably the range is enougth to a triple and 2nd version not sure.

Regards
Jaouen BAZIN
wissous, France