Greenough 4A Longboard Fin 9" Kelp Quad Rear Performance boards with deep concaves

Performance boards with deep concaves and moderate-to-extreme rocker

The warmth and performance of Graphene

the kit comes complete with our world-famous Sun Cure Epoxy Fiberfill resin

- Construction | Honeycomb

Below lists common uses for the different degree fin plugs:

Greenough 4A Longboard Fin 9" Kelp Quad Rear Performance boards with deep concavesThe Greenough 4 A Single Fin is the most iconic, functional and versatile single fin available, because it works extremely well on just about every type of surfboard. The 4 A has been True Ames' bread and butter for over 40 years now, and it is still the most popular single fin design there is due to it's all around and well balanced performance. MATERIALS & FITMENT CONSTRUCTION Solid Fiberglass FINISH Matte FITMENT Single Fin Box APPLICATION Screw +