An interesting article on morethanthegames.co.uk from the 30th March about the possibility of changing the rules to ensure that all bikes used at the games are available to buy at a reasonable cost. This has been done by windsurfing (the current board is the RSX), but it would be a big change for British Cycling who currently invest heavily on the bikes and skin suits that their athletes wear.
Ed Clancy makes a good point though - "The bike does not win the gold medal but the cyclist does"
The article: Clancy couldn't care less about UCI's proposed bike rule changes