Buster FCS I Thruster fin set X-Small

Surfboard fins 3.9'' Thruster FCS I system

Buster Surfboards OEM Surfboard Composite Fins “X-Small”. Special fin template for very light surfers and groms. A great addition to the Buster Surfboards fin range, as lighter surfers often struggle to find the perfect fins, especially for pool and river surfing. This fin set also offers more release and reduces fin breakage for heavier riders practicing flatspin tricks on standing waves, thanks to the shorter lever arm during collisions with the bottom or sidewalls. Compatible with all fin plugs using the FCS I system (FCS X2, FCS Fusion, etc.). SANE Plugs) and for fin boxes in the FCS II system (additional grub screws are then required).

Base: 3.9" / 98mm
Depth: 4″ / 100mm
Area: 11.07"² / 7140mm²
Foil: curved inner face