Graham,
Thanks for that. I had heard they fitted, but wasn't sure.
Do you remember what diameter they are?
I have a pair of Hi-Spec callipers, but they're for Cortina hubs (Got them for my Locost), but think I'll machine an adaptor and use them with bigger discs. Hi-Spec do some real tastey big discs, but keen to keep to affordable, standard, parts if I can.
Willie