FCS II Harley Ingleby Mid Performance Core Tri-Quad Fins
Model: FCS Specialty
Construction: Performance Core
Fin set: Tri-Quad (5-fin)
Fin base: FCS II
This is Harley's preferred fin set that's spec'd to work on longer boards and encourages a more progressive style of mid-length surfing.
Overview
Harley Ingleby's Mid 6 and Moe midlength models have become some of the most popular in this category. This is Harley's preferred fin set that's spec'd to work on longer boards and encourages a more progressive style of mid-length surfing. HI also rides this set on in other hybrid shapes. The HI Mid set can be applied to any mid-length with a Tri-Quad setup.
The set comprises the Reactor Large thruster template and the Performer Medium quad rear fins. As a thruster this pivotal set encourages tighter radius turns on these longer boards due to the upright nature of the fins. As a quad set, it will feel fast, smooth and predictable while encouraging a more drawn-out term. Both configurations are designed to offer a feeling of control, with the freedom to surf radically on a mid-length.
Harley's Mid Tri-Quad set has been constructed in our PC AirCore technology, which is stiff enough to handle the extra torque of these longer boards while offering a fast and responsive feel through turns.
- Designed for mid-lengths and hybrids
- Reactor Large / Performer Medium Quad Trailers
- Pivotal Tri-Quad set for easy turning
- PC AirCore Construction
Board Types
- Designed to fit the FCS II Fin System.
- Performance boards with deep concaves and moderate-to-extreme rocker.
Fin Family
Reactor Large / Performer Medium Quad Trailers
Performance Core + AirCore
Fins with AirCore Technology feature a pressed polyurethane foam core that mimics the geometric foil of the fin.
AirCore technology reduces the amount of fiberglass required in the RTM moulding process making it much lighter while allowing total manipulation of the flex.
A quick note about our photos!
We use a mix of official brand images and real-life shots from our warehouse to help you make an informed decision.
That said, what you see might differ slightly from what you receive — simply because we can't photograph every possible variation.
For example, a photo might show a 6'2 board with Futures fin boxes, while you've selected a 5'10 with FCS II. Don’t worry — you’ll get exactly what you ordered.
Sometimes, small details like the logo, its placement or overall colour tones can vary slightly depending on the production batch, camera, lighting, or even your screen settings.
These are always only minor differences, and in most cases, the photos are spot on - but we totally get that buying online can feel tricky. If you ever want more details, just drop us a message — we're happy to help!



