Originally Posted by chagzuki

I've got a pantour hub (bought from Mr mulleady, from Somnatash) and I like it a lot an aim to keep it running for a long time. There are detailed docs online regarding the servicing of it, if you search. The mechanism is quite simple, and you should be able to find something suitable as a replacement elastomer. You could, for instance, cut a thudbuster ST elastomer to the correct size. (durometer rates: x-soft ( #1 ) = 39, soft (#3) = 46, medium (#5) = 54, firm ( #7 )= 61, X-firm ( #9 )= 68 )
If I remember rightly the Pantour had two hardness of elastomer, 40A and 50A, 40A being the standard.