Introduced to competitive surfing by Mark Richards, twin fins were a major break through in surfboard design. While a twin fin configuration can be used on any board for a looser ride, they are most common on short, wide, and thick boards with a swallow tail. Keel fins have a long base with a relatively vertical trailing edge, and work best on boards with straight rails and very wide swallow tails. The twin fins that have a shorter base and a more swept back trailing edge will be looser and will work well on a performance fish with a relatively narrow tail. Some sets are sold with a small tailer fin to stabilize the board when transitioning form rail to rail. In this area of the gallery we organize the fins by system, and include compatible fins made by various companies.
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