Louis,
Good luck on finding such a beast. There are some Campagnolo clamp on shifters where one could remove the shift levers and the remaining bosses are the same format as braze-on shifter bosses. But not all Campagnolo clamp-on shifters are this way. So be careful if you go this route.
I know of no other readily available clamp-ons such as this. I spent quite a while looking for just this thing a while ago and ended up buying an NOS Huret downtube clamp-on shifter bosses which look like they would do the same thing. I think the threading on the hole was slightly different than standard, so I tapped the hole and it worked. Not as elegant as the Campagnolo would have been, but it works.
Drew Ellison Everett, Washington USA
On Jun 25, 2009, at 7:24 PM, Louis Schulman wrote:
> Recently, there was a discussion about different threading on
> shifter bosses. My problem is that I have a set of Sachs-Huret
> levers for standard braze-ons, so they won't go on my Huret clamp-on
> bosses, which have the different French threads. Zut alors! C'est
> ironique, n'est-ce pas? I do not want to switch out the special
> fixing screws.
>
> Here is the question. Is there a clamp with bosses, where the
> bosses are the same as braze-on bosses? That is, the bosses have
> the standard square bases and round shafts with normal threads? I
> have several clamp-on shifters, but the clamps are all unique to the
> shifters.
>
> If there is such a thing, does anyone have one they would like to
> part with?
>
> Thanks,
>
> Louis Schulman
> Tampa, Florida USA