Argos is just a home made version of the bayonet fork found on various Felt, Look, Argon18 etc. bikes. The Gitane method has been used a few other times, notably by Walser for Nicole Cooke at the 2008 Olympics, and the Walser-derived Focus Izalco Chrono
@mdcc_tester thanks for the highlights, I didn’t know.
Both solutions sound sketchy!