These popped up on my local craigslist and was hoping someone could shed some light on the model #, the seller says there are no identifying markings other than “Zipp”.
Also, what should I be on the lookout for if I do decide to purchase them, bring them to my LBS and have them give me a opinion them?
Zipp appears to have only the rims so the spokes and hubs are a black box. Assuming the hubs also date from 2003 there is pretty good chance they are 9 spd max. The wheels are listed as being structurally carbon with a bonded alloy brake track. I would be more cautious about this design of rims than structurally alloy rims of the same era (carbon-alloy bonding poses some major engineering challenges which ditn’t always go well in the early years of the tech).
I wouldn’t advise buying them unless they are real cheap or you want them for a specific bike build. Carbon wheel manufacturing technology has moved on a lot in the past 14 years. The move to 11 spd means its pretty easy to find wheels that are a decade new than what you are looking at for reasonable prices. In all honestly I would expect modern ‘aero-optimized’ alloy wheels to perform as well if not better than Zipps.