Steven,
May possibly be a Kerin approved Campag track hub. I think such a thing might exist. Campy tandem bubs are high flange wirh no holes, but they're QR and not bolt ons and have an 8 speed cassette on the rear.
Brian Baylis
La Mesa, CA
On ebay there is an odd track hub. Has anybody seen one likr this before? It is a high flange but does not have any holes in the flanges.
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Steven Maasland
Moorestown, NJ