re:[CR]favorite on-topic touring derailleur - duopar / ultra combo

(Example: Framebuilding:Tubing)

Date: Fri, 29 Jun 2007 18:56:08 -0700 (PDT)
From: "randy dugan" <rsdugan@yahoo.com>
Subject: re:[CR]favorite on-topic touring derailleur - duopar / ultra combo
To: jvs@sonic.net
cc: classicrendezvous <classicrendezvous@bikelist.org>


Not to hijack your shout-out to Charles, but I have an Eco-Duopar and a 14- 34 Ultra 7, running 46/34 up front with a cheap KMS chain on a 1980 Schwinn Voyageur 11.8 city bike conversion. Works great range-wise, but it can be tough to shift just one cog at a time. This might have to do with the Sun tour ratchet stem shifters, which have a large drum. Haven't tried with an y other shifters...

Randy Dugan Van Nuys, CA USA
>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>.

Date: Fri, 29 Jun 2007 16:43:46 -0700

Fr om: Jay Sexton <jvs(AT)sonic.net>

Subject: [CR]favorite on-topic touri ng derailleur

Charles, have you tried the Duopar with a Suntour Ultra 7 freewheel? I

would be interested in knowing how that combo w orked.

Jay Sexton

Sebastopol, CA

Da te: Fri, 29 Jun 2007 12:13:15 -0700

From: "Charles Andrews" <chasds(AT )mindspring.com>

To: <classicrendezvous(AT)bikelist.org>

Subject: [CR]re: favorite on-topic touring derailleur

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The Cyclone GT and the Luxe VGT are both very good single-spring tour ing

derailleurs..I've put many miles on both.

But....the b est one I've ever used in terms of predictablity,

reliability, and sh ifting to rival perfectly-adjusted Ergo, is the Huret

Duopar. We've had one on our Taylor tandem for years, through many

miles...I even u sed it with an 8-speed cassette for awhile...it didn't

like the narro w cog spacing, but it did work. Use it with a proper 5 or

6-speed on -topic freewheel, and the Duopar is unbeatable... smooth and

precise every time, especially with Simplex retrofriction shifter

levers.

just make sure, as has been noted by others, that you don't try to back

up unless the derailleur is perfectly aligned with a given rear -cog, or

the chain will wrap right around the derailleur cage, or the cage will

try to wrap itself around the freewheel.

The pr oblem is easy enough to avoid, with a little care.

I'd never use d a Duopar until 3 years ago, when we got our tandem, and I

have to s ay I've been mighty impressed with it. It'll shift to 32 and

34 toot h cogs as smooth as silk. We have the titanium version, I

assume th e steel version works as well.

Charles Andrews

Los Angeles

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