My 1992 Prometheus had the same bottom bracket, I think. Mine had a titnaium spindle (I don't know if it was original) and good quality replacement bearings and suitable circlips were easy to obtain.
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Thanks Calum. That would be great.
Scored another one too....so always good to have the original as reference and keep it's originality.
I'll send you a PM.
Thanks for all the replies on this one. Great to be able to ask the question and get a definitive result.....it's definitely the fisher bottom bracket.
Build thread for this prot"O"type to happen at some point.