Re: [CR]Stronglight Triple Crankset: FD options

(Example: Humor)

Comment: DomainKeys? See http://antispam.yahoo.com/domainkeys
Date: Fri, 11 Mar 2005 10:38:53 -0800 (PST)
From: "Fred Rafael Rednor" <fred_rednor@yahoo.com>
Subject: Re: [CR]Stronglight Triple Crankset: FD options
To: classicrendezvous@bikelist.org
In-Reply-To: 6667


Mes amis,
     I believe the "etoile" adapter works like this. (Tom, this might have been what you were saying but I can't be sure I understood):
     You install the adapter just as you would install a normal TA outisde position chainring - i.e. it's affixed to the small 5-hole BCD positions, directly on the crank. You now mount what is normally a middle position ring (80mm BCD?) to the 6 tips of the "etoile", on the _inside_ surface of the adapter. Of course, I could be wrong about the 80mm part of that. It might be that the outside BCD of the adapter is 116mm pattern used with the "randonneur" chainrings. Anyway...
     Since the inside ring(s) bolt to the outside ring - rather than to the crank - the position of all the rings is now shifted a few millimeters away from the crank. The fun part now is deciding which bolt pattern to use for the inside chainring(s). I think no matter which BCD is used by the adapter, you now may have the ability to mix 80mm and 116mm rings. I just don't have enough TA rings on hand to know how many variations are available...
     And people wonder why TA went to removable spiders on their newest cranksets.
     Best regards,
     Fred Rednor - Arlington, Virginia, USA


--- Thomas Adams wrote:


> I'd love to see one of these "etoiles" in action. As the
> spider on the Pro Vis attaches to the big chainring from the
> BB side, this can't be any kind of spacer/washer between the
> ring and the spider as that would only move the chainring
> closer to the crank arm. I must assume this gizmo allows the
> crank arm to attach to the outside of the big ring (away from
> the BB side) and that moving the ring from the outside to the
> inside of the spider is what gains you the clearance. As the
> inner rings attach only to the big chainring, they would be
> unaffected by the change. My only worry would be what the
> cranks look like with the rings bolted to the wrong of the
> spider.
>
> Regarding cross applicablility, the TA has a unique
> attachment system so I don't see this working on a crank with
> a conventional spider like the 99, assuming I'm correct on
> how the gizmo works.
>
> Tom Adams, Shrewsbury NJ
>
> Peter Jourdain <pjourdain@yahoo.com> wrote:
> Hi, there--
>
> Mike Berry (Mariposa) at Bike Specialties in Toronto
> sells a space that increases the gap b/t the crank and
> the big ring on the TA Pro Vis triple chainsets. It
> may work on a Stronglight as well. Don't know. I'll
> order one for myself when I get my TA setup. Here is
> the link and an excerpt from his site--
>
>
> http://www.bikespecialties.com/parts.html
>
>
> Note. The 'Etoile' Up until now those wishing to use
> the TA Cyclo-touriste crankset with a modern front
> derailleur have found that the space between the outer
> ring and the crank arm has been inadequate. Older
> front derailleurs had a flat outer cage plate but all
> the new ones are shaped and require more space between
> crank and ring. Now we can offer the "etoile" which
> spaces the outer ring over about 4 mm which makes this
> classic crankset perfectly compatible with the latest
> front derailleurs. To include an etoile with either
> double or triple set add CAD$20.00 to the above
> prices.
>
> Good luck!
> Peter Jourdain
> Whitewater, Wisconsin
>
> ----------------
>
> P. Lynn Miller wrote:
>
> >I am struggling with a Stronglight Model 99 Triple
> crankset on my
> >"puller" to get a front derailleur that will work. As
> you know the
> Model 99 is a "low-Q" crankset with minimal clearance
> between the crank
> arm and chainring. So does anyone here have a good
> recommendation for a
> front derailleur. The ringset is 52-40-28.
> >
> >
> Peter White responded:
> You'll need to find an old Huret or Simplex. All
> modern triple
> derailleurs have shaped outer plates and will either
> rub on the crank
> or
> on the chain.
> ++++++
>
> harvey sachs wrote:
> The critical clearance is between the outside of the
> outer chainwheel
> and the inside of the right crank. On my Stronglight
> 49d with TA rings
> it is 5.5 mm (just checked with stack of feeler
> gauges); it was the same
> with TA on TA. That ain't much, and I think I
> measured 7 mm for a
> Stronglight 99 (several months ago, don't remember
> exact figure). So, Peter
> is giving good advice. I could not get either an early
> Shimano DuraAce
> or a SunTour Cyclone to set up cleanly. Much to my
> surprise, a homely
> Campy record is doing fine. But, I'd still rather
> find a pretty
> Stronglight 99 crankset for the Hetchins...
>
>
>
>
>
>
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