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FCS SF4 Stretch Quad Fins
The FCS SF4 Stretch Quad Fins design features a moderate foil on a wide base, which help to generate significant speed from the initial turn, and a neutral foil along a thin, flat tip. At low speeds, the ample surface area in the tip of the FCS Quad SF4 Fins provides power, giving you the ability to generate speed with ease. With the FCS Stretch Quad Fins as speed increases, applied force will allow the thin tip to twist with the flow (much like a birds wing in flight) becoming neutral while reducing lift and drag through turns. These cambered foils were developed using a NACA (National Advisory Committee for Aeronautics) foil in combination with theories taken from sailboard sails. With years of fin experience Stretch foiled the first prototypes of the Quad SF4 himself. The result on your Quad is a board that is free yet stable at high-speed turns. And all these characteristics are enhanced in Performance Core!
FCS SF4 Stretch Quad Front Fin Size:
Base: 4.48 in. 114 mm
Depth: 4.48 in. 114 mm
Area: 15.15 in.² 9776 mm²
Sweep: 30.5°
FCS SF4 Quad Rear (Thruster) Fin Size:
Base: 4.49 in. 114 mm
Depth: 4.44 in. 113 mm
Area: 15.14 in.² 9772 mm²
Sweep: 30.7°
FCS SF4 Quad Rear (Quad) Fin Size:
Base: 3.88 in. 98 mm
Depth: 3.80 in. 96 mm
Area: 11.22 in.² 7238 mm²
Sweep: 30.7°
The FCS SF4 Stretch Fins: available in Glass Flex and Performance Core
Click here to read reviews from Finatic™ Members
"Very Responsive"
- Christopher C., Jacksonville, FL on the FCS SF4 Stretch Quad PC
Overall Fin Rating: 4
Height: 5'7"
Weight: 141 - 150 lbs.
Surfing Experience: (1 - 10): 7
Home Break: Jacksonville Beach, FL
Where did you surf these fins: Jacksonville Beach
Wave Height: 2 - 4 ft.
Wave Conditions: Good
Misc. Wave/Location Information: N/A
Type of Board: Fish
Board Size: 5 ft. 5 in.
Fin Setup: Quad
Misc. Board Information: 6'0" x 15 3/4" (M) x 20 3/8 (T) x 13 1/2 (N) 5-Fin single-double V bottom. Swallow Tail 3" Thick
Other Thoughts: Very responsive, easy to pickup speed with a pump or two, easy to turn - overall, fun fins.
"Not for Me"
- Kevin O., Daytona Beach, FL on the FCS SF4 Stretch Quad PC
Overall Fin Rating: 2.5
Height: 5'8"
Weight: 171 - 180 lbs.
Surfing Experience: (1 - 10): 5
Home Break: Daytona Beach, FL
Where did you surf these fins: Different spots, East Coast, FL
Wave Height: 1 - 2 ft.
Wave Conditions: Poor
Misc. Wave/Location Information: N/A
Type of Board: Fish
Board Size: 6 ft. 8 in.
Fin Setup: Quad
Misc. Board Information: Round nose quad, fish tail
Other Thoughts: These fins are not for me, on my boards in these conditions.
"Very Fast Down the Line"
- David J., Manhattan Beach, CA on the FCS SF4 Stretch Quad (5-Fin) Glass Flex
Overall Fin Rating: 4
Height: 5'10"
Weight: 181 - 190 lbs.
Surfing Experience: (1 - 10): 9
Home Break: El Porto
Where did you surf these fins: El Porto/C Street
Wave Height: 2 - 4 ft.
Wave Conditions: Good
Misc. Wave/Location Information: N/A
Type of Board: Shortboard
Board Size: 6 ft. 2 in.
Fin Setup: Quad
Misc. Board Information: CI Whip
Other Thoughts: Nice fins, good drive but still can turn tight and they're very fast down the line.
"Great fins"
- Berry H., Port St. Lucie, FL on the FCS SF4 Stretch Quad (5-Fin) Performance Core
Overall Fin Rating: 5
Height: 5'8"
Weight: 141 - 150 lbs.
Surfing Experience: (1 - 10): 5
Home Break: North Jetty Ft. Pierce, FL
Where did you surf these fins: North Jetty
Wave Height: 2 - 4 ft.
Wave Conditions: Good
Misc. Wave/Location Information: N/A
Type of Board: Hybrid
Board Size: 5 ft. 9 in.
Fin Setup: Quad
Misc. Board Information: 5'9" Stoke surfboard...similar to the sperm whale
Other Thoughts: These fins were great, loved them!!!
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