I have the wh-7900 (not 7850) c24 clincher and they are outstanding wheels. I don't know if these are just the new version of the 7850 or what, but they rock for all the reasons mentioned above. You can't find a better wheel in terms of ride quality, stiffness, durability, and low weight (1380 grams). Not to mention the price of ~$850-$900 is a steal compared to some other wheelsets that cost twice as much and can't do what these wheels can.