Designed in collaboration with shaper and pro surfer Matt Biolos, the FCS II Mayhem Pivot PC Carbon Tri-Fin Set is a refined high-performance template built for surfers who want speed, tight turns, and quick directional changes. Suitable for a wide range of boards—from elite high-performance models to versatile everyday boards like the RNF and Puddle Jumper—this fin emphasizes agility and responsiveness, particularly on lower-rockered boards. The stealthy new aesthetic completes the signature design, pairing performance with style for surfers seeking a responsive, speed-oriented fin.
Fin Size Detail
| Size | Fin | Height | Base | Area | Sweep | Foil | Weight |
|---|---|---|---|---|---|---|---|
| Small | Side | 4.46" | 4.16" | 13.71"² | 32.0° | Flat | 120-155 lbs. |
| Center | 4.46" | 4.16" | 13.71"² | 32.0° | Flat | ||
| Medium | Side | 4.59" | 4.30" | 14.49"² | 31.7° | 50/50 | 145-175 lbs. |
| Center | 4.59" | 4.30" | 14.49"² | 31.7° | Flat | ||
| Large | Side | 4.74" | 4.41" | 15.26"² | 32.9° | 50/50 | 165-200 lbs. |
| Center | 4.74" | 4.41" | 15.26"² | 32.9° | Flat |
Product Info
Designed in collaboration with shaper and pro surfer Matt Biolos, the FCS II Mayhem Pivot PC Carbon Tri-Fin Set is a refined high-performance template built for surfers who want speed, tight turns, and quick directional changes. Suitable for a wide range of boards—from elite high-performance models to versatile everyday boards like the RNF and Puddle Jumper—this fin emphasizes agility and responsiveness, particularly on lower-rockered boards. The stealthy new aesthetic completes the signature design, pairing performance with style for surfers seeking a responsive, speed-oriented fin.
Fin Size Detail
| Size | Fin | Height | Base | Area | Sweep | Foil | Weight |
|---|---|---|---|---|---|---|---|
| Small | Side | 4.46" | 4.16" | 13.71"² | 32.0° | Flat | 120-155 lbs. |
| Center | 4.46" | 4.16" | 13.71"² | 32.0° | Flat | ||
| Medium | Side | 4.59" | 4.30" | 14.49"² | 31.7° | 50/50 | 145-175 lbs. |
| Center | 4.59" | 4.30" | 14.49"² | 31.7° | Flat | ||
| Large | Side | 4.74" | 4.41" | 15.26"² | 32.9° | 50/50 | 165-200 lbs. |
| Center | 4.74" | 4.41" | 15.26"² | 32.9° | Flat |
Product Details
- Fin Type: FCS II
- Size: S, M, L
- Fins in Set: Three
- Fin Configuration: Thruster
- Fin Tech: PC Carbon
- MPN: FMBPCU06
Product Construction
PC Carbon Tech
Performance Core Carbon (PCC) combines the proven Performance Core construction with full-template carbon tissue reinforcement. Built using a multi-layered RTM process with a lightweight hex core, this trusted construction delivers progressive flex, drive and reliable performance across a wide range of conditions. Extending the carbon tissue across the full template adds controlled stiffness, particularly through the tip, complementing the fin’s more upright outline with faster rebound, sharper response and more positive feedback through tight turns and rapid direction changes.
Additional Info
Part of the Reactor fin family, the Mayhem Pivot features smooth curves, a moderate tip area, and a neutral sweep angle, delivering a smooth feel while allowing for sharp snaps off the top and rapid turn redirection. Inspired by the Reactor template, it is designed for beach break conditions where speed and acute turning are essential.
Product Features
- Designed in collaboration with Matt Biolos
- Upright template for tight turns and quick directional changes
- Moderate tip area and neutral sweep for smooth, responsive feel
- Built for speed, snaps, and tail release
- Ideal for beach breaks and lower-rockered performance boards
Beach Break
Reactor Template. Built for speed, tight turns, and explosive snaps.
Ideal Conditions
Suited to Beach breaks, hollow waves and more critical surf conditions.
Board Types
Recommended for performance shortboards with moderate-to-low rocker.
Performance Feel
The Mayhem Pivot provides fast, responsive, and agile performance. The upright template allows surfers to perform tight, acute turns with confidence, while the smooth curves and moderate tip ensure stability and control during high-speed maneuvers. This fin excels at generating drive through the pocket and quick redirection off the top, making it ideal for surfers who like to attack critical sections of the wave with speed and precision. The result is a fin that feels lively, controlled, and highly responsive, perfect for performance-focused beach break sessions.
Fin Template: Carver
Built for speed, tight turns, and explosive snaps. The Reactor template features an upright outline with a smaller center of area, allowing the board to pivot quickly and release cleanly off the top. This makes it ideal fin for surfers who favor fast surfing, sharp turns, and progressive maneuvers.
Ideal Conditions: Beach Break
Performs particularly well in:
- Hollow waves
- Fast, punchy beach breaks
- More critical surf conditions
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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