Re: [CR]Chainring Spacer Qusetions

> Well, this proved an even greater drama than I thought. I finally ordered a
> set of Sugino triple chainring bolts just to get the spacers, after checking
> the advertised thickness was correct for spacing a Stronglight mod 49
> double. For some reason, I was confident that a Stronglight spacer would
> have the same ID as "modern" ones. Got the Suginos today and stole the
> spacers. But no, the Sugino ID is too small for the Stronglight bolts (or
> actually the nuts on the backside). Someone had suggested hub axle spacers.
> As luck would have it, a hub spacer is a perfect fit for the Stronglight
> bolt sets, fits like a glove. How about those Stronglight designers? Over
> half a century ago they cleverly designed the diameter of their bolt sets to
> match the hub spacers that would be available 50 years later, so their stuff
> would never be obsolete. Yet another demonstration of the superiority of
> French design. Vive la France!! :-)
>
> Regards,
>
> Jerry Moos
> Houston, TX
>
> ----- Original Message -----
> From: "jerrymoos" <jerrymoos@sbcglobal.net>
> To: <classicrendezvous@bikelist.org>
> Sent: Friday, February 06, 2004 12:47 PM
> Subject: [CR]Chainring Spacer Qusetions
>
>
> > Just received a Stronglight 49D crank missing a couple of Chainring bolts.
> > The bolts are no problem, as Stronglight used generic unmarked chromed
> steel
> > hex wrench bolts, which are easily bought today. Current ones are made in
> > Japan or Taiwan, but pretty much undisguishable from Stronglight
> originals.
> >
> > But because the mod 49 inner ring bolts to the outer ring rather than to a
> > crank spider, I was also missing the spacers which space the rings apart.
> > No problem, I thought, I'll steal a couple of spacers off a set of TA or
> > Lambert rings, where the inner rings likewise bolt to the outer. However,
> I
> > soon discovered that Stronglight, TA and Lambert all have different inside
> > diameters for these chainring spacers. The TA and Lambert spacer IDs were
> > too small for the Stronglight bolts to pass through. I could have tried
> the
> > spacers from Nervar Sports, which might be more likely to be compatible
> with
> > Stronglight, but by now I recognized that there was a basic problem.
> Since
> > it was only a couple I was missing, I ordered a set of triple chainring
> > bolts with spacers for the inner ring from Bike Tools etc., after checking
> > that the 4.7mm spacer thickness they list was correct.
> >
> > Does anyone know of a source for chainring spacers for various cranks like
> > TA, Stronglight, etc. without buying a complete bolt set, which in the
> case
> > of Lambert and probably Stronglight 49, aren't available anyway? I
> presume
> > that all the spacers had the same thickness to space the chainrings apart,
> > so maybe if the ID is a bit too large, it still works OK as long as the
> > bolts are well tightened. Anyone tried this? Was there anything
> > approaching a standard spacer ID, or did every manufacturer use a
> different
> > one?
> >
> > While I'm on the subject of crank fasteners, anyone know of a source for
> > the Campy C-Record/ Victory/ Croce D-Aune self-extracting crank bolts,
> where
> > the colllar threaded into the left hand crank extractor thread, or some
> > reasonable replacement? Evidently, modern self-extracting crank bolts use
> > normal right hand crank extractor thread, although on a strictly technical
> > basis, the old Campy design was probably superior.
> >
> > Regards,
> >
> > Jerry Moos
> > Houston, TX