I am selling this superb wheel set as I can no longer justify keeping them. They are lightweight standard generation one wheels. This is probably the best wheel set money can buy- aero, stiff, comfortable and raced by many pros. The weight with the tubs on them is around 1600g. Without the tubs they are just over 1000g. I have owned them for two years and have put at most 500 dry miles on them. I bought them from a family friend who owned them from new and again used them lightly in good conditions. They have not been crashed/abused. The dura ace hubs have been serviced and have ceramic bearings that are running completely smoothly. The only slight criticism is that the labels on the rims have slightly faded, new ones can be purchased cheaply if you felt that you wanted to refresh them. You can read online about the superb reviews these wheel sets get. There is a review here: http://www.roadbikereview.com/cat/wheels/wheelsets/lightweight/lightweig... They are without doubt the nicest deep section wheels I have used but with a young family cannot dedicate the time anymore to justify them. They will make a great set of race wheels for someone. They come with Continental Competition Tubular tubs glued on, with plenty of tread left (they were installed when I bought them). I also have two unused Tufo S3 lite tubs that are included in the sale (cheapest I can find them for is £40 each), valve extenders and key as well as two shimano wheel bags and the matching skewers for the wheel set. I will post in a proper wheel box or this item can be collected from Bristol. Got lots of pics, email in profile.