SA3 Set (3)
Price Individual: $49.95
"This fin shape has roots back to the first thrusters in late 1980 through 81, boards were flatter, shorter, wider. The first thruster fin was more upright to compliment that style of board. As board shapes changed to narrower thinner and increased rocker, surfers needed more drive from the power source to maintain speed and connect turns.
The SA3 has that original modification of more rake, more fin tip area, good thickness for a proper hydrodynamic foil. The new fins have flat inside foil on the forward side fins to ensure all round performance, working best in small wave boards with a lot of concave, bigger wave boards with vee or boards with a combination of concave and vee such as semi guns and fish style boards." Simon Anderson