FCSII Mayhem Pivot Tri Fin Set

FCSII Mayhem Pivot Tri Fin Set

Medium / Sand
$155.00
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FCSII Mayhem Pivot Tri Fin Set

FCSII Mayhem Pivot Tri Fin Set

$155.00
Shipping calculated at checkout.
Description

Designed in collaboration with shaper and pro surfer Matt Biolos, the Mayhem Pivot 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.

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.

The stealthy new aesthetic completes the signature design, pairing performance with style for surfers seeking a responsive, speed-oriented fin.

Size
Color
1 left

ships within 3–5 days

Free shipping on most US orders over $99 (Exclusions Apply)

30-day returns on unopened items

STOCKED IN COSTA MESA

Every brand here earned its
place on our shelf.

20+ Brands in stock

20+ Years manufacturing

50,000+ Boards built

COMMON QUESTIONS

Straight answers.

Orders & Shipping

Do you ship internationally?

Yes. We ship to Brazil, Australia, Indonesia, and beyond. For boards and larger volumes, contact the shop directly to coordinate freight. Accessories and supplies ship standard internationally.

How long does shipping take?

Accessories and supplies ship within 3–7 business days via USPS or UPS. Boards ship via specialized freight — transit time confirmed at order. Free shipping on US orders over $79.

Can I pick up my order?

Yes. Local pickup at 1777 Placentia Ave, Costa Mesa. Mon–Fri 8am–5pm · Sat 9am–2pm.

My order arrived damaged. What now?

Contact us within 48 hours with photos. We'll sort it out directly — no forms, no waiting. Calling the shop is fastest.

What payment methods do you accept?

Visa, Mastercard, Amex, Discover, PayPal, and Shop Pay. Custom builds require a $250 deposit to start.

Can I cancel or modify an order?

Contact us as soon as possible. If it hasn't shipped, we can adjust it. Once dispatched, our return policy applies. Custom builds can't be cancelled once work has started.

Customer Reviews

Boards & accessories

From the factory floor

MEKP Catalyst

MEKP Catalyst

MEKP Catalyst

Ensure a professional-grade cure with this high-quality MEKP (Methyl Ethyl Ketone Peroxide) catalyst. Specifically formulated for use with polyester resins and gelcoats, this essential hardener provides the reliable chemical reaction needed for consistent results in board building, composite repairs, and laminating projects.

Technical Specifications and Usage:

  • Compatibility: Designed exclusively for use with standard polyester resins and gelcoats.
  • Usage Warning: Do not use this catalyst with UV-stable or UV-curing resins.
  • Recommended Dosage: This catalyst is typically dosed at a ratio of 1% by volume, though environmental conditions may require slight adjustments.

Safety and Shipping Information:

Due to the chemical nature of Methyl Ethyl Ketone Peroxide, this product is classified for UPS Ground shipping only. Please note that hazmat shipping charges apply to larger volume containers to ensure safe and compliant delivery. Always handle with care and use appropriate safety equipment during application.

$4.75 USD

Pickup available at 1777 Placentia Avenue

Usually ready in 24 hours

View store information

MEKP Catalyst

1 oz

1777 Placentia Avenue

Pickup available, usually ready in 24 hours

1777 Placentia Avenue
Costa Mesa CA 92627
United States

8323979038
4oz Fiberglass "E" Cloth

4oz Fiberglass "E" Cloth

4oz Fiberglass "E" Cloth

Fiberglass E-cloth is a premium woven fiberglass fabric designed for surfboard construction, providing lightweight strength, durability, and a smooth finish. Used with resin during lamination, it reinforces the foam core while maintaining flex and performance, making it ideal for both polyester and epoxy surfboards.

Rolled cloth ships in a long box (approx 36"). 

For custom cut to length quantities, please inquire. 

$5.00 USD Unit price $5.00 USD/yd

Pickup available at 1777 Placentia Avenue

Usually ready in 24 hours

View store information

4oz Fiberglass "E" Cloth

27" / 1 Yard Folded

1777 Placentia Avenue

Pickup available, usually ready in 24 hours

1777 Placentia Avenue
Costa Mesa CA 92627
United States

8323979038
6oz Fiberglass "E" Cloth

6oz Fiberglass "E" Cloth

6oz Fiberglass "E" Cloth

Fiberglass E-cloth is a premium woven fiberglass fabric designed for surfboard construction, providing lightweight strength, durability, and a smooth finish. Used with resin during lamination, it reinforces the foam core while maintaining flex and performance, making it ideal for both polyester and epoxy surfboards.

Rolled cloth ships in a long box (approx 36"). 

For custom cut to length quantities, please inquire. 

$5.00 USD Unit price $5.00 USD/yd

Pickup available at 1777 Placentia Avenue

Usually ready in 24 hours

View store information

6oz Fiberglass "E" Cloth

27" / 1 Yard Folded

1777 Placentia Avenue

Pickup available, usually ready in 24 hours

1777 Placentia Avenue
Costa Mesa CA 92627
United States

8323979038
Surfboard Sanding Resin

Surfboard Sanding Resin

Surfboard Sanding Resin

Silmar 250A brand sanding resin that we use in all our daily production. Also refered to as Hot Coat Resin, it contains a wax additive which cures hard so you can sand, paint or gelcoat depending on the finish you are going for. Must be sanded between layers in case you are doing more than one layer. 

Catalyst sold separately: MEKP Catalyst

$19.00 USD

Pickup available at 1777 Placentia Avenue

Usually ready in 24 hours

View store information

Surfboard Sanding Resin

Pint

1777 Placentia Avenue

Pickup available, usually ready in 24 hours

1777 Placentia Avenue
Costa Mesa CA 92627
United States

8323979038