Best SUP Side Bite Fins | FCS Box

Enhance stability on your single-fin longboard or experiment with a quad setup on your thruster shortboard using these versatile fins. Perfect for adding drive and stability to your longboard as sidebites or transforming your thruster into a powerful quad setup. Each set includes 2 fins, along with a fin key and screws, available in FCS or Futures compatibility. FCS fins seamlessly fit into FCS II (FCS 2) fin boxes, ensuring a hassle-free transition. Elevate your surfing experience with these adaptable and high-performance fins designed for both single-fin and thruster setups.

Experience rapid, precision surfing with our performance-driven side fins. The upright, pivotal template ensures swift acceleration and tight turns in the pocket, inspired by the FCS Kelly Slater K2.1 design. Ideal for hollow, steep waves and punchy beach breaks, these fins suit all board types. Elevate your surfing in diverse conditions with this high-performance, agile fin setup.

Explore the pinnacle of surf innovation with Mannkine trailers, a creation by renowned FireWire designer Dan Mann. Part of our Apex Series lineup, these trailers, meticulously crafted from G10—layers of fiberglass and epoxy resin compressed and baked in an autoclave—ensure unparalleled strength. Known for designing iconic boards like the FRK and Sweet Potato, Dan Mann’s expertise shines through. Tailored to complement his front fins yet adaptable to various designs, Mannkine trailers elevate your surf game. Immerse yourself in the fusion of cutting-edge design and superior strength for a ride like no other.