The CNC-milled CFS fuselage is the stable backbone of your foil system – optimised for top performance and smooth water flow. Its rounded edges improve the flow over the front wing and stabiliser, the enlarged connection surface increases torsional stiffness, and the concave area behind the mast supports clean water release. New to the CFS system are SS316 inserts for greater thread durability and no more need for Tef-Gel. Sealing plugs prevent water from remaining inside the fuselage. The optimised mast fitting ensures maximum precision and compatibility, even with larger wings. 70 - Longest version for maximum tracking and controlled turns. Especially suited for wingfoiling in flat water and for riders prioritising stability, early lift, and easy handling. 64 - The all-rounder: ideal balance between stability and manoeuvrability. Perfect for pumpfoiling or wave riding where smooth turns and instant power transfer matter. 60 -Shortest version for maximum agility and direct response. Ideal for kitefoil, pumpfoil, and wingfoil freestyle – when tight turns, quick transitions, and precise handling are key. Made from high-strength, saltwater-resistant aluminium, the CORE Spectrum fuselage combines maximum stability with low weight and high impact resistance. Precision CNC milling ensures perfect fit of all connections, minimises tolerances, and guarantees play-free, direct power transfer. Premium SS316 stainless steel inserts extend thread life and eliminate the need for additional Tef Gel – for low-maintenance, long-lasting performance even under heavy use. All CFS components are 100% compatible with each other and can be freely combined.