The FCS II Harley Ingleby HIBT Quad Fin Set pairs the Reactor Large thruster template with Performer Large quad rears to support tight pivotal turns or smooth predictable speed depending on the chosen setup. Built for the HIBT 3 plus 3 system, this set becomes part of a modular design that enables quad, twin, and asymmetrical configurations when combined with the Harley Ingleby Power Twin Set, sold separately. The fins use PC AirCore construction and suit mid lengths, hybrids, and performance boards with deeper concaves and stronger rocker, all within the FCS II system.
Fin Size Detail
| Fins | Depth | Base | Area | Sweep | Foil |
| Front | 4.70" | 4.45" | 16.03"² | 32.0° | Flat |
| Center | 4.54" | 4.40" | 14.80"² | 32.4° | 50/50 |
| Rear | 4.26" | 4.09" | 12.63"² | 32.4° | 80/20 |
Product Info
The FCS II Harley Ingleby HIBT Quad Fin Set pairs the Reactor Large thruster template with Performer Large quad rears to support tight pivotal turns or smooth predictable speed depending on the chosen setup. Built for the HIBT 3 plus 3 system, this set becomes part of a modular design that enables quad, twin, and asymmetrical configurations when combined with the Harley Ingleby Power Twin Set, sold separately. The fins use PC AirCore construction and suit mid lengths, hybrids, and performance boards with deeper concaves and stronger rocker, all within the FCS II system.
Fin Size Detail
| Fins | Depth | Base | Area | Sweep | Foil |
| Front | 4.70" | 4.45" | 16.03"² | 32.0° | Flat |
| Center | 4.54" | 4.40" | 14.80"² | 32.4° | 50/50 |
| Rear | 4.26" | 4.09" | 12.63"² | 32.4° | 80/20 |
Product Details
- Fin Type: FCS II Fins
- Size: L
- Fins in Set: Four
- Fin Configuration: Quad
- Construction: Performance Glass
- MPN: FHARPC04LGQS
Product Features
- FCS II × Harley Ingleby Collab
- For use on his new HIBT 3+3 model
- Highest area twin set in the FCS range
- Moderate sweep (rake), full tip and longer base
- Lower depth value
- Recommended for all board types including fish, funboard and twin fin boards
- Designed to be used with the FCS II Fin System
- This is a true twin fin set and does not include a stabilizer center fin
Additional Info
Harley Ingleby's new HIBT 3+3 model has opened up a whole new world of fin configurations for surfers. When the accompanying Harley Ingleby HIBT Quad Set is purchased alongside this twin fin set, the following fin configurations are possible:
- Quad
- Twin
- Asymmetrical Quad
- Asymmetrical Twin
All these options are shown in the photos to illustrate the options. Please note that the quad set is sold separately.
To quote Harley, " Taking the versatility of the HIBT to new levels is the 3+3 fin system, letting you ride it as a true quad, true twin, or an asym fin setup. It’s like having three boards in one - super versatile, super fun".
Performance Glass
Performance Glass (PG) fins are machine cut from layers of solid fibreglass. These fins are stiff and are widely used by pro-level surfers because the integrity of the flex is maintained under immense force, and in the most extreme of conditions and situations.
Warranty
This product is backed by a warranty from the manufacturer. Click below for details on the warranty policy for FCS II products.
Returns
If you are not 100% satisfied with your purchase you may return it for a refund, or exchange within 30 days of receiving your order.





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