I have a pair of these on my steel gravel / winter commuter bike and I like them. Some people complain that the rings are too soft / wear out too fast. I think I've had mine for 4 or 5 seasons now and they're still fine.To be honest, I didn't really look at it til now... A bit much perhaps. Velo Orange have a TA style crankset that is a "bit" cheaper:
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Those rings are unobtainium although it can be used as a 94 double iirc, so 32/46?