The workhorse length — one fuse that just works, in your choice of construction. The 33cm Medium is our recommended length for most riders. It strikes the best all-around balance: stable enough to feel locked-in when you want it, loose enough to carve naturally when you don't. Predictable through turns, efficient through pump cycles, confidence-inspiring across disciplines and conditions. If you're not sure which length to pick, start here. Two constructions. One geometry. Same length, same dimensions, same all-around feel — the choice comes down to ride quality and budget. Carbon — Full carbon, no foam. Stiff, light, and built with premium materials for the highest-performance ride in the lineup. The taper-lock interface keeps the connection tight with zero play, even under heavy riding. Aluminium — A more affordable alternative without sacrificing the geometry that makes the 33cm work. Same predictable feel, lower price point — a great entry into the system. Cover included. Every UniFoil fuselage ships with a protective cover. Why you'll love the 33cm: Best all-around balance — the length we recommend for most riders. Stable, predictable feel — smooth through turns and transitions. Efficient pumping — natural cadence, no fighting the foil. Choosing your fuse length: 22cm (XS) — tightest turns and maximum responsiveness. Aluminium only. Best for intermediate to advanced riders. 27cm (Short) — tighter turns and quicker response. Recommended with Evolution front wings. 33cm (Medium) — best all-around length for most riders. 39cm (Long) — maximum stability. 1-Bolt vs 2-Bolt compatibility: 1-Bolt Fuse — required for Vyper and Retrospective models. 2-Bolt Fuse — recommended for Hyper2 and Progression wings. If you're already on our system, your 1-bolt fuse will still fit the newer 2-bolt wings (Hyper2 / Progression) depending on your setup. Hardware note (aluminium only): If you're using stainless steel screws with aluminium parts in saltwater, apply Tef-Gel to the threads to prevent corrosion and galling. Bolts sold separately.