Just checked. It is 122. A Stronglight 93 ring lines up perfectly with the Nervar chainring bolts. I have two other Nervars like this and they are both 122. So Nervar was changing to the 122 Stronglight circle at about the same time Stronglight was introducing the mod 106 with the Campy 144 circle, while Campy was abandoning 144 in favor of the smaller C-Record circle. Seems that French marketing was always one or two steps behind.
Regards,
Jerry Moos
Houston, TX
> Jerry,
> I don't know when the last Mercier's were build but I'm
> certain that the last Nervar cranks were made in 1985
> (plus-or-minus one year). Those later Nervars used a mildly
> offset design and were semi-aero in appearance.
> I'm surprised your's has the 122mm BCD. I have one from
> '84 and it has a 128mm BCD. On the other hand, it may be that
> they made both sizes simultaneously and it was merely the luck
> of the draw as to which version was used on a particular
> bicycle.
> Amitiés,
> Fred Rednor - Arlington, Virginia
>
>
>
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