This crank set was especially designed for the US GT superbike project, the French national team (both for the Olympic Games), and for Chris Boardman- he used these in one of his road time trial bikes, and on his Hour record Eddy Merckx/Lotus 110.
We were fortunate enough to get this crank from the USA, its owner happy to see it go to a cool project (we built a Boardman Hour record replica).
Only 14 sets of cranks were made.