RE: [CR]Gran Turismo rear der. mounted to Campy 1010a dropout?

(Example: Production Builders:Cinelli)

From: "Kenneth Freeman" <ken4bikes@att.net>
To: <FujiFish1@aol.com>, <classicrendezvous@bikelist.org>
References: <cd6.215d8875.34a96939@aol.com>
Subject: RE: [CR]Gran Turismo rear der. mounted to Campy 1010a dropout?
Date: Sun, 30 Dec 2007 18:14:03 -0500
In-Reply-To:
Thread-Index: AchLLDA8Od55psh1Q0q/qTZsSjQmTgADHTog


Mark,

If my old Rossignoli was any example with its FB/Magistroni cotterred chainset, that cotterred Campy which is very similar to the FB, is overkill for that frame. The FBs and Campys were racing parts that I think overlapped with the early aluminum cranks. Lower-level bike boom frames sold in the late '60s had three-pin cotterred cranks with little yokes to attach the chainrings, but not of the quality you are talking about. The front derailleurs were (if not Simples or Huret) were usually Valentino, a lighter-weght aluminum plunger design than the Gran Sport. Rear mechs were either Huret Allvit, Simplex, or Valentino in these price points. Gran Tourismos, kind of a long-cage Valentino, came in a little later when "Touring" began to be a buzzword.

Ken Freeman Ann Arbor, MI USA

-----Original Message----- From: classicrendezvous-bounces@bikelist.org [mailto:classicrendezvous-bounces@bikelist.org] On Behalf Of FujiFish1@aol.com Sent: Sunday, December 30, 2007 4:36 PM To: classicrendezvous@bikelist.org Subject: Re: [CR]Gran Turismo rear der. mounted to Campy 1010a dropout?

Steven Willis also mentioned that. I was hoping that the one here was sleeved too, but alas, it is just a simple back nut, six-sided and flat on front and back. In addition ... MAN! ... I'm a fair bike mechanic, but that pivot bolt just didn't want to thread out of the black adaptor ... it felt like it was tightening the internal spring while trying to loosen. The threads are clearly standard right.

After fighting to less than an eighth of a turn, I paused and thought. Is there any reason not to simply mount the unit & adaptor, rearward of the integral hanger, and pretend the latter isn't there? Seems to me it will lengthen the chainline, and I think I can afford the weight penalty. :)

Here are a few shots of this tried on, although the back nut is not yet replaced for actual use: http://picasaweb.google.com/Torp84SL/Other

So whadd'ya guys think ... will this work ok? I realize it gives me just a bit more funk edge on Harvey, but let's be realistic ... can anybody really, ever, out-funk the original FunkMeister Harvey? Really now? :)

Hope this solves it. Thanks for everyone's help!

Ciao, Mark Agree Southfield MI USA ~ ~ ~

In a message dated 12/30/2007 3:02:56 P.M. Eastern Standard Time, classicrendezvous-request@bikelist.org writes:

Date: Sun, 30 Dec 2007 12:45:44 -0600 From: John Thompson <john@os2.dhs.org> To: classicrendezvous@bikelist.org Subject: Re: [CR]Gran Turismo rear der. mounted to Campy 1010a dropout? Message-ID: <4777E758.2060505@os2.dhs.org> In-Reply-To: <c9f.201e94ea.34a85084@aol.com> References: <c9f.201e94ea.34a85084@aol.com> Content-Type: text/plain; charset=ISO-8859-1 MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Precedence: list Reply-To: john@os2.dhs.org Message: 6

FujiFish1@aol.com wrote:
> I had finally figured out what to do with a mid level (at best), approx.
> 1970 Torpado road bike that I got from Matteo, some years ago. It is orange,
> with long Campy dropouts. My new scheme is to use a nice honkin'
> Gran Turismo
> rear, Gran Sport front, bar end shifters, weighty Campy steel three arm
> crank, and other appropriate items for the theme. Great. The problem is that the
> rear unit I have is pre-mounted to a black steel hanger, with the beautiful
> red-C'd bolt ... that has threading significantly smaller than the mounting
> hole in the dropout.

My Gran Turisimo has a sleeved nut that threads onto the upper pivot bolt from behind the dropout (rather like the way many Simplex derailleurs mounted). I just mounted it on a Campy 1010B dropout without much difficulty. The hardest part was preloading the upper pivot spring whilst tightening the sleeved nut on the other side.

-- John Thompson (john@os2.dhs.org) Appleton WI USA ------------------------------

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