BikeMag.com:

For 2006, Cane Creek is offering two high-end 29er wheelsets: the Zonos Disc 29 and the Zonos Disc Carbon 29. The Carbon 29 (pictured here) is actually an aluminum/carbon hybrid. Cane Creek contends that the carbon overlay offers real performance benefits in the form of added stiffness and reduced weight. The 28-spoked wheels (front and rear) weigh just a hair over 1800 grams per set and retail for $975—the purely aluminum Zonos 29er wheelset weighs just 56 grams more and sells for $775.