FCS II HS PC Aircore Quad Rear Fins

Hayden Cox's quad rears, in Performance Core with AirCore.

They're made to pair with the HS thruster set, so you can switch the same board into a quad when you want it. The template is neutral and well balanced, built for speed, flow and response, with a longer base that drives you off the bottom. The 80/20 foil keeps turns easy while holding stability and drive through a long carve. AirCore puts a foam core inside the PC, which makes them noticeably lighter.

They'll handle a wide range of surf, from Straddie to the Northern Beaches and the Central Coast. FCS built them for higher-volume boards with lower rocker, and calls out the Hypto Krypto in particular. Suits boards like the Hypto Krypto by Haydenshapes, the Precious by Pyzel, and the Mod Quad and Quiver Killer by …Lost.

Same board, different gears.

Key features

• HS template: neutral and all-round, with a longer base for speed off the bottom.
• 80/20 foil: easy turning, with stability and drive when you're carving.
• PC + AirCore: a pressed foam core inside Performance Core, so they're lighter with a tuned flex.

Specs

• Fin system: FCS II
• Set: quad rears (2 fins)
• Construction: Performance Core + AirCore
• Medium (65–80kg) and Large (75–90kg): base 4.09" / 103.7mm, depth 4.26" / 108mm, area 12.63 sq in, sweep 32.4°, 80/20 foil
• Colour: White

If you're comparing

• Performer PG Quad Rear: the same 80/20 foil in stiff Performance Glass, for surf with more push.
• Reactor PC Quad Rear: upright, for tight turns in hollow, punchy beachies.
• Carver PC Quad Rear: more sweep, for hold on long, open walls.

Complete your setup: the HS PC AirCore Tri set gives you the matching fronts.

Not sure what to get? Get expert advice in-store or online via live chat.