Duotone's New Foil Assist - Everything You Need to Know With Cyril Coste From Duotone

In this episode of the FOILERS Podcast, Pete sits down with Cyril Coste, the innovative mind behind Duotone’s brand-new Foil Assist system. From his roots in France and years riding and designing in Maui, to leading R&D across Japan and Taiwan, Cyril brings a lifetime of foiling experience to this groundbreaking project.Together, we unpack the full story behind Duotone’s entry into the foil-assist space — why they built it, how it works, and what sets it apart. Cyril goes deep into the engineering: the high-voltage battery system worn on the waist, the free-hand thumb remote, the power and runtime philosophy, prop options, modular mast design, and the thinking behind their ultra-light Midfish board.We also explore real-world performance across waves, downwinders, pumping, and progression riding — including safety, wipeouts, compatibility with different foil brands, and how the Duotone system preserves the true “foil feeling.”If you’re curious about foil assist, comparing options, or just want the full inside story from the person who built it, this is the most comprehensive breakdown you’ll hear anywhere.