Wheelbuilding / Wheel Building / Wheel build help

Hello all. My first post. A question: I have Ofmega high flange hubs on Ambrosio Extra Rims. They are a nightmare to fit a modern tyre onto. Is it a good idea to replace the old rims with something modern? Thanks

If your rims are 700c (622mm) which I believe they are, then HTFU and learn how to fit tyres properly. Yes, some tyre/rim combinations can be a bit of a bitch but, generally, you should be able to fit tyres to rims without using tyre levers. If you are trying to fit 700c tyres to older 27x1-1/4 (630mm) rims then you are indeed an idiot.

Hope that helps and sorry if I've misjudged you.....