Originally Posted by PhattTyre
I've had mine for almost three years now. I had Rolf Vector wheel on my Lemond (they came stock) and replaced them with Cosmos. The Rolfs were flexy and the whole bike would shimy a little over 35-40mph. With the Cosmos I don't get any of that. They track straight and true. Laterally they're very stiff, but they still ride comfortably.
Like PhattTyre, I have a LeMond that came with Rolf Vectors, but I did not have the same problems and thought they were great wheels, but after 12,000 miles and me being in the 210-220 range, they got some little hairline cracks near the spoke holes so I had to change them out. This was two years ago and I replaced them with the Mavic Cosmos, on sale for $250 (the $200 price would be a steal). I have really liked the Cosmos also. They've stayed very true and they don't seem to be heavy or slow to me. I think they are a great value and I like the way they look.