On Apr 6, 2006, at 11:45 AM, REClassicBikes@aol.com wrote:
> Do you have a copy of "An Intimate portrait of the tour de france"?
>
> On page 30 there is a photo of gino bartali talking with a
> mechanic. the
> mechanic is holding a chainset. can anyone identify that chainset?
>
> for those who do not have the book. the chainset is a 4 arm type.
> the forth
> arm is the back of the crank arm (like a Y shaped chater lea
> crank). The bolt
> cirle is large. Bartoli is holding a chainring to fit, a 54 tooth I
> would
> guess. It fixes to the cranks, and second smaller ring can be
> fitted to the
> inside. On the floor there is a double ring set up. the inner ring
> looks like TA
> Criterium ring and is fixed to the outer with six bolts.
>
> The other interesting ring is the single chainring lying on the
> floor. This
> looks just like a Campag record chainring, two circles linked by
> spokes. But
> there are only 4 bolt holes, obviously to fit the 4 arm cranks. It
> looks to be
> a 56 tooth ring. But if you did not count its teeth, it
> proportions would
> look like a 44 tooth ring.
>
> Any ideas?
>
> Martin Coopland, Scotland, BatesBicycles.com
There is a Daniel Rebour drawing of that crank in one of my Rebour reprints. The crank is stamped Bartali.
Chuck Schmidt South Pasadena, Southern California http://www.velo-retro.com (reprints, timelines and groovy t-shirts
.