I haven't had much riding experience with these but I remember when I ordered the Ofmega components in the early 80's, they were comparable to low end Campagnolo without the price gouging. I like the looks of the crankset, and the derailleurs - Ofmega Premier - shift as well as any bike I have ever ridden. I think there was some slight weight penalty vs. Campagnolo but I was just macho enough to think the added grams made no difference. I was gong to get dropped anyway

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My personal bias prevented me from putting Japanese components on my Italian frame. I believed at the time - and still do - that the Ofmega equipment was equal to or superior to the Japanese components available during those years. I also don't mind downtube shifting, but then again, I know nothing

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I'd go with the Ofmega components again. Good luck.