"Hank" <
[email protected]> wrote in message
news:d825cb61-bc24-4905-b5f2-5f153516cf83@s19g2000prg.googlegroups.com...
> On Feb 3, 6:09 am, "* * Chas" <[email protected]> wrote:
> > "A Muzi" <[email protected]> wrote in message
> >
> > news:[email protected]...
> >
> >
> >
> > > * * Chas wrote:
> > > > Did Campy ever make a Gran Sport Crankset that used 110mm BCD
> > chainrings?
> > > > Supposedly Campy briefly made some Gran Sport cranks that used
116mm
> > BCD
> > > > chainring that interchanged with Victory and Triomphe cranks but
I've
> > > > never seen one or even a catalog listing for these.
> > > > Back in the day I just ignored Gran Sport components but now I'm
> > trying to
> > > > find some info for a project.
> > > > I'm familiar with the 3 arm cranks with riveted inner chainrings
and
> > steel
> > > > or alloy crankarms plus the Cheap NR style GS cranks with 144mm
BCD
> > > > chainrings but not the others.
> >
> > > Their first GS crank was a square taper forged steel chromed crank,
> > > 3-pin (elegant appearance, not as heavy as it sounds). Later 3-pin
> > > aluminum arms. The 1982 book shows GS 5-bolt aluminum with 144mm
rings
> > > (GS 'road') and a final 116mm version triple (GS 'tour').
> >
> > > I believe you may have meant one of the 110mm (Olympus, Euclid,
Contax,
> > > Icarus?) 'offroad' cranks, I don't recall a GS in a 110mm format.
> > > --
> > > Andrew Muzi
> > >www.yellowjersey.org
> > > Open every day since 1 April, 1971
> >
> > Thanks everyone for the info.
> >
> > I lucked out and got a pair of Campy 36T 116mm BCD chainrings. The
> > lettering on the bag was so faded that 116 looked like 110. Looking at
the
> > picture in the auction, I could tell that the BCD was bigger than
110mm.
> >
> > Now if I could only find some 116mm 50T chainrings.
> >
> > Chas.
>
> LooseScrews.com has 53s for $29. That's only 1 tooth bigger than a
> 50-34 gap that most double FDs can handle OK. Lack of pins might slow
> things down, but wackier combos were used on many a TA or Stronglight
> 49 "back in the day."
Thanks Hank,
I have a stack of 52T and 53T chainrings. I've been riding 49/13 high
gears for over 30 years. I like to keep the big plate around 48T, 49T or
50T (retro grouch). I used to ride 49/45 chainrings with 13-18, 13-21,
13-24 or 13-26 freewheels for half step gearing depending on the terrain.
Lately the old knees are getting older and don't pull the hills as well
anymore. I'm now using 42T, 39T or 38T small chainrings (depending on the
cranks) with 13-28 freewheels or cassettes on my retro rigs. I have some
bikes with triples and granny gears for pulling real hills but I'd like to
keep the 2 mid 80s bikes that came with Campy Victory gruppos somewhat
stock and not have to change the RDs. That's why I'd like to try the 50/36
chainring combos.
Chas.