Upright keel template designed for traditional fish shapes.
$110.00
Overview
Board Types
Performance Glass
Performance Glass (PG) fins are machine cut from layers of solid fiberglass. These fins are stiff, and are widely used by pro level surfers because the integrity of the flex is maintained under immense force, and in the most extreme of conditions and situations.
Medium - Large
New Sizing for Specialty Fins
You may notice new size ratings for our Specialty Fin Range. Previously, all Specialty Series fins were rated an XL. To better reflect fin sizing, we now have 3 new size categories: S-M, M-L, and L-XL.
Please refer to the Size/Fin Data tab on the product page to compare dimensions, or alternatively, you can find more information on the FCS Fin Data Page
| Fin |
Base (inches) |
Base (mm) |
Depth (inches) |
Depth (mm) |
Area (inches) |
Area (mm) |
Sweep Deg° |
Foil |
| M/L | 6.41 | 162.8 | 5.50 | 139.5 | 25.05 | 16160 | 32.8° | Flat |
View the FCS Fin Data page for Base/Depth/Area/Foil information.
We offer:
Love these fins. Plenty of drive and hold but tall enough to allow you to do tighter arcs too.
The air core are a great material that seem to take a bit of weight out of the board and add a bit of buoyancy which helps in really small surf.
You can’t beat the Modern Keel for a high performance twin. These things cut through water like a hot knife through butter but still hold tight when it’s time to go vertical!
These Keel fins are great, awesome Drive and hold!
Still waiting on the board i ordered 😊
these fins worked amazing in waste to shoulder high OB beach break in San Francisco ... great stability & speed. was really impressed with how the held in the turns ... Do you self a favor get a set .. Tons of Fun ..
Kelsey
