Jon,
I just came across this Allegro page by Steven Maasland,
http://www.nonlintec.com/
This one appears to have all the braze-ons you're contemplating, although I can't see bottle bosses. He doesn't say whether the braze-ons are original or not. However, this bike has the RD cable stop on top of the chainstay and the cable guides on top of the BB. Depending on the RD, this arrangement usually looks and works better. If you're going to add shifter and bottle bosses and cable stops, you may as well go for Campag cable guides on top of the BB rather than a plastic one on the bottom.
John Betmanis Woodstock, Ontario Canada
At 11:12 AM 05/08/2008 -0700, Jon Spangler wrote:
>I deeply appreciate all of the heartfelt responses I've received on
>my proposed "heresy."
>
>I want to ride this Allegro, not collect it. It will probably need
>repainting simply in order to withstand regular use without risk, but
>my goal is not a "restoration," although I want to be sensitive to
>its history. (My mother is a historian, and I am a practicing
>Episcopalian, to explain my word choices.) I have ridden the AIDS/
>LifeCycle rides from SF-LA twice on my beloved Eisentraut, which has
>several chips in its paint job from those tough-on-the-finish rides,
>and would probably ride the Allegro in a similar fashion.
>
>Saving money on parts was never my goal. (Has any passionate cyclist
>ever put saving money first?!) I just never liked all the slippage
>and loosening that occurred with my Raleigh Pro's cable guides,
>bottle cages, etc., regardless of whether I taped under them, etc. On
>a show bike this would not matter, but I am not interested in
>restoring and showing this bike, as many of you are (and I respect
>your efforts and achievements, believe me).
>
>In an ideal world (and with a much bigger budget), I would consider
>chroming the fork, lugs, and rear stays and add the top-level
>detailed paint and transfers of the prettiest Allegros. But I would
>still add a plastic under-BB cable guide, shift lever bosses, TT
>cable guides, and bottle cage mounts. I would probably even (gasp!)
>spread the rear triangle to 126mm, which I saw done and had done on
>my own bikes over the years on many steel frames. It is also possible
>that I might build it up initially (pre-refinishing) as a performance
>"fixie" for use around town. (All of this frame alteration and
>finishing work would, of course, be done by competent professionals--
>I am not a DIY welder or metal plater... :-) And I will not do any of
>this work if I build the bike up and determine that I do not like the
>way it rides "as is."
>
>Again, my goal is to ride this bike, enjoy it, and want to set it up
>to work appropriately. At the same time, I want to reiterate how much
>I appreciate the generous assistance and advice offered by many CR
>members, both on- and off-list. I have already learned a great deal
>from you, and I am grateful.
>
>If I am going to be a heretic, it will be as a highly conscious and
>at least somewhat ambivalent one. :-)
>
> Appreciatively--and not-yet-heretically yours,
>
>
>Jon Spangler
>
>Alameda, California USA
>
>hudsonspangler@earthlink.net
>
>
>Date: Mon, 4 Aug 2008 21:56:24 -0700 (PDT)
>From: gillies@ece.ubc.ca (donald gillies)
>To: classicrendezvous@bikelist.org
>Subject: Re: [CR]Heresy? Adding braze-ons to a "classic" frame
>Message-ID: <20080805045624.8305B7684@ug7.ece.ubc.ca>
>Precedence: list
>Message: 5
>
>So here's my take on adding braze-ons to an Allegro.
>
>- You are adding $75 of braze-ons to forgo $48 in parts ?? And, you
> are harming the original state of the frame to overspend on these
> braze-ons ??
>
>$10 campy NOS top-tube cable clips, 3x, NOS, ebay
>$20 campy VG clamp-on shifters, net increase in price from $15 for
>braze-ons
>$15 campy NOS downtube cable guide
>$3 stainless bottle clamps from QBP
>
>I don't think it makes much sense, and it might harm the resale value
>of your original frameset. Think a little bit about the next guy,
>maybe he's a minimalist fixie rider or collector / restorer ??
>
>There is a good reason to use an under-BB plastic or campy downtube
>cable guide. The shifter wire will eventually wear through the metal
>or plastic, at which point you can easily replace the guides and
>keep riding. Braze-on guides are not so easily replaced.
>
>- Don "retro-grouch" Gillies
>San Diego, CA
>------------------------------