http://bicycling.com/blogs/boulderreport/2012/07/27/britains-mysterious-olympic-bikes/
"According to the Guardian, the frames themselves are built at Advanced Composites Group, an English manufacturer of high-end composites that are used in Formula 1 racing, aerospace, and the America’s Cup sailboats, where it sponsors the Swiss Alinghi team. Katsanis used to be an ACG design engineer.
The frames are not the only custom equipment Team GB has developed, either alone or with partners: handlebars, stems, skinsuits and even the unmistakable “Smurf” track and time trial helmet that sponsor Kask produced for them are exclusive to Team GB and Sky (Kask plans to sell the helmet after the Games). Overall, the project is said to have cost millions of British pounds.
But the frames are by far the most controversial.
UCI rules plainly state that bikes used in competition have to be available to the public to purchase. In article 1.3.007, the rules state, “Bicycles and their accessories shall be of a type that is sold for use by anyone practicing cycling as a sport.” When manufacturers pointed out that this would eliminate their ability to test prototype designs in pro racing, the UCI amended its interpretation to allow a nine-month grace period after first competition use to bring the product to market.
But British Cycling raced various custom bikes from 2001 until 2010 without ever making an effort to market them."
