- Free shipping on orders $99 or more (excludes bulky items)
- "No Worries" 30-Day Returns - *Exceptions Apply
FCS II Channel Islands PC Tri Fin Set
Developed in collaboration with Channel Islands Surfboards, the FCS II CI PC Large Tri Fin Set is built for surfers chasing speed, tight turns, and responsive performance. Featuring an upright template, these fins are designed to deliver quick start-up acceleration and allow for sharp, vertical surfing in critical sections. The fuller profile from base to tip provides the confidence to push hard through turns while still maintaining a loose, free feel off the top—making them ideal for both performance and hybrid boards.
Features:
- CI Upright Template: Promotes tight, vertical turns with quick responsiveness.
- Fast Start-Up Speed: Generates immediate acceleration from take-off.
- Full Base-to-Tip Profile: Provides strong drive and control while maintaining easy release.
- Reactor Fin Family: Built for speed, tight turns, and sharp snaps in critical sections.
- Performance Core (PC) Construction: Lightweight material with progressive flex for drive, hold, and control.
- Versatile Performance: Suitable for both high-performance shortboards and hybrid/step-down boards.
Ideal Conditions:
- Best suited for hollow, steep waves and punchy beach breaks where speed and responsiveness are essential.
Board Types:
- Designed to fit the FCS II Fin System.
- Recommended for performance boards with relaxed rocker, including Channel Islands performance and hybrid models.
Fin Family:
- Thruster – Reactor: Find Speed. Speed, tight turns, and snaps.
Material:
- Performance Core (PC): Lightweight construction with a controlled flex pattern for versatile, high-performance surfing.
Size:
- Medium: 65–80kg / 145–175 lbs
- Large: 75–90kg / 165–200 lbs
| Fin | Base (in) | Base (mm) | Depth (in) | Depth (mm) | Area (in²) | Area (mm²) | Sweep | Foil |
|---|---|---|---|---|---|---|---|---|
| MED Side | 4.39 | 111.4 | 4.59 | 116.4 | 15.04 | 9700 | 30.3° | Flat |
| MED Ctr | 4.39 | 111.4 | 4.59 | 116.4 | 15.04 | 9700 | 30.3° | 50/50 |
| LRG Side | 4.50 | 114.2 | 4.70 | 119.3 | 15.79 | 10190 | 30.3° | Flat |
| LRG Ctr | 4.50 | 114.2 | 4.70 | 119.3 | 15.79 | 10190 | 30.3° | 50/50 |
Goes well with
Free delivery on orders over $99*
We aim for Same Day Despatch for most orders received by 12pm Monday – Friday.
We offer the following delivery options at checkout:
Standard: Generally arrives in 3-11 business days
- FREE for orders $99 or more*
- $9.95 for orders less than $99*
Express: Generally arrives in 2-5 business days
- $14.95 for orders less than $99*
- $9.95 for orders $99 or more*
* Note: Free Shipping offer excludes bulky items such as such as surfboards, bodyboards, heavy board racks and certain other bulky items. Options are provided at checkout.
30 day “No Worries” Returns
Your can return items that are unused, unworn, with all tags within 30 days of purchase. Note some exceptions apply.
You are responsible for paying the return delivery cost or return it to us in-store.
All refunds will be issued to the original payment method.
If you would like to exchange an item please let us know and we will try to assist.