Originally Posted by MacG
I think the cog will be standard, but your lockring threading is almost certainly different. The ISO standard (dura ace, etc) is 1.29" x 24 tpi, but Campy uses the Italian standard of 1.32" x 24 tpi.
I think Phil hubs use the Italian size.
This is starting to make a little sense - the lockring threaded on perfectly onto the tubular wheelset (now toast) that came with my Bianchi. But the Phil lockring I have wouldn't go onto my DA hubs. But it does thread on to the Campy perfect.... Surly must fit somewhere in the middle, because I've used the Phil on a Surly fine. Weird.