All the seatposts I have seen (in the flesh and in contemporary catalogues) for the narrow rail saddles from Brooks, Unica et al were of the early Record type aluminium non fluted two bolt fixing. I have whilst I am typing this a set of the saddle rail supports and top clamps to convert a normal Record pin to one which takes the narrow rail saddles together with one of the 'Campagnolo' Brooks Competition B17 standard saddles. Hilary Stone
Mark A. Perkins wrote:
> I don't think this will work on the Campy post that I have with a narrow
> railed Brooks saddle, it's all steel, chrome plated, and the space
> between the two opposing pins (left and right) the top is much narrower
> than more recent posts.
>
> <Hilary.Stone@Tesco.net> writes:
>> These were used on a special Campagnolo pillar - I think it was
>> simply the
>> rail supports and top clamps that were the only parts which were
>> different
>> though. So it doesn't mater what diameter Campagnolo Brooks pin you
>> find,
>> the parts can be transferred to another Record pin.
>> Regards
>> Hilary Stone