$155.00

Shipping calculated at checkout.

Size

Medium

Large

Color

Black

White

Quantity

The FCS II CI Upright Tri Fin Set is a collaboration with Channel Islands Surfboards, designed for speed and tight turns. Its upright outline comes to life in punchy, hollow waves and vertical surfing, and it gives quick start-up speed from the takeoff.

Key Features

Upright Reactor family template
Fast start-up speed and tight turns
Full base-to-tip profile you can push hard
Made for CI performance and hybrid models with relaxed rocker
Performance Core (PC): a fiberglass-reinforced build that flexes like glass but weighs less
Fits FCS II fin boxes and clicks in without tools

Where it works best

Hollow, steep waves and punchy beach breaks, especially on boards with flatter rocker such as hybrids and step-downs.

Specifications

Fin system	FCS II
Setup	Thruster (3 fins)
Construction	Performance Core
Sizes	Medium, Large
Colors	Black, White

Size Guide

As a general guide by surfer weight: Medium about 145–175 lb; Large about 165–200 lb. If you're between sizes, size up for more hold or down for a looser feel.

FAQ

Will these fit my board? They fit boards with FCS II fin boxes. They won't fit original FCS two-tab plugs or Futures boxes.

Order Processing:

Most orders are processed within 1–3 business days (Monday–Friday).

Processing time does not include weekends or holidays.

Where Orders Ship From:

We work with a mix of in-house fulfillment and trusted partner suppliers.

Depending on the item, your order may ship from:

Southern California (One Revolver Surfboards HQ)
A partner warehouse through Shopify Collective

This helps us offer faster shipping and a wider range of high-quality products.

Shipping Details:

Tracking numbers are emailed automatically once your order ships
Delivery times vary by carrier and product type (usually 2–7 business days)
Multi-item orders may arrive in separate packages
Apparel, accessories & small items ship via USPS, UPS, or partner carriers

Surfboard Shipping:

Surfboards ship via freight carrier with full insurance
Boards are packaged securely for safe transit
Typical delivery time: 5–12 business days, depending on region

International Shipping:

Delivery times and rates shown at checkout
Customs and import fees may apply based on your country

If you have any questions about your order or tracking, feel free to reach out anytime at info@onerevolversurfboards.com.

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Join the One Revolver Crew

FCS II CI Upright Tri Fin Set

Key Features

Where it works best

Specifications

Size Guide

FAQ