Developed by Matt Biolos, the FCS II Matt Biolos MB PC Carbon Quad Rear Fin Set are designed to pair with his upright side fins, creating a loose and lively quad setup. Perfect for beach breaks and everyday waves, this set delivers a fast, responsive feel while still maintaining stability and flow through carves. The 80/20 foil encourages smooth, easy turning with added control, making it a versatile option for surfers looking to get the most out of their quad.
Fin Size Detail
| Size | Fin | Depth | Base | Area | Sweep | Foil |
| Medium | Quad Rear | 4.16" | 4.02" | 11.54"² | 33.3° | 80/20 |
| Large | Quad Rear | 4.16" | 4.02" | 11.54"² | 33.3° | 80/20 |
Product Info
Developed by Matt Biolos, the FCS II Matt Biolos MB PC Carbon Quad Rear Fin Set are designed to pair with his upright side fins, creating a loose and lively quad setup. Perfect for beach breaks and everyday waves, this set delivers a fast, responsive feel while still maintaining stability and flow through carves. The 80/20 foil encourages smooth, easy turning with added control, making it a versatile option for surfers looking to get the most out of their quad.
Fin Size Detail
| Size | Fin | Depth | Base | Area | Sweep | Foil |
| Medium | Quad Rear | 4.16" | 4.02" | 11.54"² | 33.3° | 80/20 |
| Large | Quad Rear | 4.16" | 4.02" | 11.54"² | 33.3° | 80/20 |
Product Details
- Fin Type: FCS II
- Size: M, L
- Fins in Set: Two
- Fin Configuration: Quad
- Fin Tech: PC Carbon
Product Construction
Performance Core Carbon
Often referred to as PC Carbon or PCC, these fins are highly responsive and feature strategically placed carbon that’s designed to complement the fin template. PCC fins suit fast surfing and are favored by power surfers who like to perform explosive turns on critical parts of the wave.
Additional Info
The quad rear template shares a similar outline aesthetic has been designed to work seamlessly with the side fins. As a quad this set will feel very stable and smooth to turn with an underlying feeling of control. The quad set is well-suited to performance and hybrid shapes.
Template developed by Matt Biolos to work with the upright MB side fins. Produces a loose and lively quad set for beach breaks and everyday waves. 80/20 foil promotes easy turning with stability and flow when carving.
Ideal Conditions
Open face, down-the-line waves, particularly good in point and reef breaks.
Board Recommendations
Performance shortboards and hybrid models. Designed to fit the FCS II Fin System.
Fin Family
Carver: Find Power. Powerful, drawn-out turns with added hold.
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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