FCS II CI Upright Tri Fin
A collaboration with Channel Islands Surfboards, the CI Upright is designed for speed and tight turns.
- A collaboration with Channel Islands Surfboards, the CI Upright is designed for speed & tight turns.
- A template that comes to life in punchy hollow waves, but can also suit conditions where you need the start up speed to get going.
Ideal Conditions
- Hollow steep waves, punchy beach breaks.
Board Types
- Designed to fit the FCS II Fin System.
- Performance boards with deep concaves and moderate-to-extreme rocker.
Fin Family
- Reactor: Find Speed. Speed, tight turns & snaps.
MEDIUM (65Kg – 80Kg / 145 – 175 Lbs)
LARGE (75Kg – 90Kg / 165 – 200 Lbs)
| Fin |
Base (inches) |
Base (mm) |
Depth (inches) |
Depth (mm) |
Area (inches) |
Area (mm) |
Sweep Deg° |
Foil |
| MED | 4.39 | 111.4 | 4.59 | 116.4 | 15.04 | 9700 | 30.3° | Flat |
| LRG | 4.50 | 114.2 | 4.70 | 119.3 | 15.79 | 10190 | 30.3° | Flat |








