My TT1 has a Paso bottom end which is mated to Pantah heads ...

The Pantah parts manual shows that the inlet manifolds are secured by Nyloc nut (51); capped washer (50); a steel sleeve (49) and a rubber washer/sleeve (48)

Attached is a picture showing these parts.

Whilst undertaking some work on the heads recently I found that the rubbers on the vertical head have disintegrated.

These rubbers have a distinguished shoulder and would be very hard to replicate (certainly for me ...!)

I have trawled the internet but am finding it difficult to locate replacements anywhere ....

I would very grateful if somebody could direct me in the correct direction or suggest a suitable alternative ....

Many thanks

Tom

If you do find a source please let us know because I've had to re-use some second-hand rubbers that were slightly better than the old ones.
Good luck because as I far as I can tell they are unique to Pantahs and Ducati and other sources (eg Ian Gowanloch) have long been out of stock of these.