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Koral Trailer Fin - ST Box

Name: GONG - Koral Trailer Fin - ST Box
Brand: GONG
SKU: GON25FINTRAFUTKORBLW-S
Price: 19.0 EUR
Availability: InStock

The KORAL trailer fin for Single Tab boxes.

See Description

19€

Fin Screw Key

Unique

Screw for Futures Fin Box

Microfiber Poncho First

BLACK

Available on June 15, 2026

            0
            -15

  qc 0
  ps -15
  iq 0
  mq 15

The product will be available from June 15, 2026

ref : GON25FINTRAFUTKORBLW-S

Direct sale from shaper to surfer

Quality boards conceived in France

Pay in multiple installments

fin-spare Trailer
fiber-glass-fin Fiber Glass
single-tab-box Single Tab Box

Details

Board type

Shortboard

Midlength

Longboard

Template

Upright

Neutral

Raked

Aptitudes

Drive

Pivot

Hold

Speed

Program

Description

Program

A small, pivot-oriented and discreet trailer designed to add maneuverability and light control without breaking the natural glide of a twin.

Overview

The Koral is the most discreet trailer in the range. Its goal is simple: provide a light anchoring point without altering the loose behavior of a twin. Unlike larger trailers such as the Tide or Mist, the Koral acts as a fine-tuning adjustment, preserving as much of the twin’s free-flowing character as possible.

Its relatively wide base for its size adds just enough stability to secure engagement without weighing down the setup. The cut tip and reduced surface area maintain excellent glide and quick release off the tail. The result is dynamic, playful, and very fluid surfing. The Koral does not lock the board in, it simply refines control and clarity in maneuvers.

Template

Compact pivot-oriented template. The rake is low, with a very upright outline. This favors pivot and enables tight turns and fast redirections.

Base

The base is relatively wide for its size. It provides enough support to stabilize the tail without locking the board.

Depth

The depth is reduced, limiting excessive grip and allowing maximum freedom and speed.

Surface area

The surface is intentionally limited to preserve the twin fin’s character. It tapers quickly into a cutaway tip that enhances glide and release.

Setup

The twin + trailer setup is a hybrid configuration that combines the speed and glide of a twin fin with an added layer of control. The addition of a center trailer stabilizes the tail and channels water flow without overly weighing down the board.

The feeling remains loose and fast, but more structured: the trailer reduces slide-outs, improves hold through turns and makes trajectories more predictable, especially at high speed or in critical sections. The board retains its freedom while gaining precision and stability.

This is an ideal setup for adapting a twin to more demanding conditions, striking a balance between glide, control and safety in maneuvers.

Technology

Our fins are manufactured from solid fiberglass panels, ensuring outstanding strength and long-term reliability. Precision CNC machining from solid material allows for highly accurate shapes that stay true to the original design, delivering smooth, consistent performance in all conditions. This process also makes it easy to develop different templates and fine-tune performance characteristics to suit specific needs.

The same construction method is used across the entire range, guaranteeing consistent flex patterns and feel between models. This proven manufacturing process provides excellent resistance to heavy loads and exceptional durability.

Highly resistant to torsion, impacts, salt water, and UV exposure, these fins maintain their performance over time while remaining easy to maintain and repair when needed.

Technical sheet

Koral Trailer Fin - ST Box fiberglass / S / BLACK AND WHITE

Buying guide

For whom?

This fin has the smallest surface area in the range, so it remains very subtle in the overall board feel and allows for fine tuning of the setup. The Koral is aimed at surfers who want to keep their twin very loose and playful, as well as those looking to push their twin toward a more technical surf while maintaining maximum freedom.

It suits all levels. It is ideal for surfers riding small to medium-sized waves who want a bit more precision without losing glide.

What for?

The Koral works particularly well on modern twins, fish shapes, or small-wave-oriented boards.

In small to medium waves, it allows you to gain precision and radicality without sacrificing the natural speed of a twin fin.

It is especially suited to fast, playful boards where the goal is to add precision and maneuverability while keeping the loose twin feel. A light and fun option.

What size?

The choice of trailer size depends on the desired level of control.

A small trailer (2” to 3”) remains subtle. It slightly stabilizes the board without affecting its looseness.
A medium trailer (3” to 4”) offers a good balance between control and glide.
A larger trailer (4” and above) significantly changes the behavior by increasing hold and stability.

The larger the trailer, the more stable and directional the board becomes. The smaller it is, the freer and faster the board feels.

Equipments

The product is a small center fin designed to be added to a pair of twin fins.

Delivery

Orders are prepared and shipped quickly: most are dispatched within 24 to 48 business hours.
The delivery time, meaning the transit of the parcel to your address, then depends on the delivery location and the carrier.
Shipping costs are transparent and calculated based on weight, volume, and delivery address.

View all our delivery FAQs.

Exchanges & Returns

You have a 14-day right of withdrawal to return or exchange a new product that does not suit you.

View our returns FAQs.

Eco-Responsible Packaging

We prioritize sustainable, recyclable, and reusable packaging solutions, minimizing single-use plastic as much as possible while ensuring optimal protection for products, including large items.