A friend of mine had these custom built about a year ago. He is letting me try them out and may be selling them. They seem to be in excellent condition. My friend is a big, strong rider and used these as everyday wheels. I've ridden OPs for the past 10 years or so and know about their reliability. Not so sure about the AC hubs though. They're the 58 front hubs, 28 hole and the 205 rear hubs, 32 hole. I figure their weight is somewhere around 1600 grams. Would appreciated any feedback on this wheelset. BTW, friend went to a lighter wheelset.