Twin fins buying guide
Twin fins — two fins, no center — are the original performance setup for fish boards and retro shapes. Without a center fin the board planes faster and feels looser, with a flowing quality that is hard to replicate on a thruster. Twin fins excel where generating speed is the priority.
Twin vs thruster vs quad
Twins are the loosest — the tail can slide and project freely, which feels great when it works but needs active foot pressure to control. Quads sit between twins and thrusters — speed of a twin with more rear hold. Thrusters are the most controlled and predictable.
Which boards use twin fins?
Most common on fish surfboards — especially retro fish with swallow or fish tails. Some performance shortboards (Pyzel Tiger Twin, CI Free Scrubber). Some midlengths. Some twin fin boards accept a center trailer fin — check if your board has a trailer box.
Sizing
Twin fins use XL and Large sizing more than thrusters because they generate more lateral fin pressure. Our twin fin inventory skews XL and Large.
Systems we carry
FCS II: MR PC Twin, CI Keel, and others. Futures: Christenson Upright, T1 Alpha, AMK Glass, Mayhem Evil Twin. Browse FCS and FCS II and Futures.
Related
All fins · Quad fins · Thruster fins · Fish surfboards · Fins Explained
