FCS K-2.1 Fins

The FCS K-2.1 Fins have now been discontinued and replaced with the FCS V-2. If you would like to purchase the K-2.1 we have limited quantities available. Get them now before they're gone.

Kelly Slater designed the FCS K-2.1 fins to be more maneuverable and faster off the top than the original FCS K-Fin.

The FCS K-2.1 side and center fins have different templates, foils and flex patterns. With the K-2.1's the larger, more upright side fins have greater flex for tighter and faster turns. The smaller, stiffer center fin adds control! The FCS K-2.1's are Kelly Slater’s world winning template in Glass Flex, ideal for high performance in pocket surfing. You HAVE to add the FCS K-2.1 Fins to your quiver if you don't have them yet!

The K-2.1 Fins are the first of Kelly Slater’s world beating templates' now available in Performance Core. Kelly tested prototypes of the K-2.1 fins in Performance Core through the 2nd half of ’08. The K-2.1 Performance Core Fins have an upright template designed by Kelly with a smaller trailing fin. This is what Kelly rides in beach break and barrels and is ideal for tight turns and high performance in the pocket surfing.

FCS K-2.1 Fin Size:

FCS K-2.1 Side Fin Size:
Side Base: 4.33 in. 110 mm
Side Depth: 4.53 in. 115 mm
Surface Area: 15.23 in.² 9824 mm²
Sweep: 32°

FCS K-2.1 Center Fin Size:
Center Base: 4.28 in. 19 mm
Center Depth: 4.41 in. 112 mm
Surface Area: 14.22 in.² 9172 mm²
Sweep: 32°

FCS K-2.1 Grom Fin Size:

(IDENTICAL to the K-2.1 Fins, but approximately 10% smaller.)
FCS K-2.1 Grom Side Fin Size:
Side Base: 3.98 in. 101 mm
Side Depth: 4.13 in. 105 mm
Surface Area: 13.89 in. ²8964 mm²
Sweep: 32°

FCS K-2.1 Grom Center Fin Size:
Center Base: 3.94 in. 100 mm
Center Depth: 4.05 in. 103 mm
Surface Area: 13.08 in.² 8437 mm²
Sweep: 31°

FCS K-2.1 Quad Rear Fin Size:
Center Base: 4.07 in. 104 mm
Center Depth: 4.26 in. 108 mm
Surface Area: 12.64 in.² 8158 mm²
Sweep: 32.4°

*The FCS K-2.1 Quad uses the K-2.1 sides and custom rears, (listed above) while the K-2.1 Tri-Quad uses this same set up with the center from the K-2.1 Thruster set.

The FCS K-2.1 Fins: available in Glass Flex, Green Flex and Performance Core
The FCS K-2.1 Grom Fins: available in Performance Core
The FCS K-2.1 Quad: Available in Performance Core

FCS V-2 Fins

FCS designed the FCS V-2 fins to be more maneuverable and faster off the top.

The FCS V-2 fins are designed for fast, critical surfing to get you in the pocket. This upright template produces quick start up acceleration. The FCS V-2 side fins have a pivotal template that allows for tight turns in the pocket. These fins will give you speed and give you the maneuverability for fast, hollow, steep waves or that punchy beach break. This medium sized set is great for surfers from 140lbs to about 170lbs or the larger surfer that wants to loosen up their board. Ideally for performance boards with deep concave and moderate to extreme rocker, the FCS V-2 fins will liven up any board. If you are looking for a fast, high performance fin the FCS V-2 will deliver.

FCS V-2 Fin Size:

FCS V-2 Side Fin Size:
Side Base: 4.33 in. 110 mm
Side Depth: 4.53 in. 115 mm
Surface Area: 15.23 in.² 9824 mm²
Sweep: 32°

FCS V-2 Center Fin Size:
Center Base: 4.28 in. 19 mm
Center Depth: 4.41 in. 112 mm
Surface Area: 14.22 in.² 9172 mm²
Sweep: 32°

FCS V-2 Quad Rear Fin Size:
Center Base: 4.07 in. 104 mm
Center Depth: 4.26 in. 108 mm
Surface Area: 12.64 in.² 8158 mm²
Sweep: 32.4°

*The FCS V-2 Quad uses the V-2 sides and custom rears, (listed above) while the V-2 Tri-Quad uses this same set up with the center from the V-2 Thruster set.

The FCS V-2 Fins: available Performance Core
The FCS V-2 Quad and Tri-Quad Available in Performance Core