FIREWIRE 6.5" SINGLE FIN | SINGLE FIN FOR MIDLENGTH, SINGLE AND 2+1

The bridge between shortboard and longboard: the Firewire 6.5" Single Fin for your midlength in single or 2+1 configuration

There is a point in the quiver where shortboard maneuverability and longboard glide meet: it's the short midlength, and that is exactly the territory the Firewire 6.5" Single Fin dominates. The most compact size in the Firewire Single Fin line keeps the range's four pillars intact—hold, drive, release, and control—while adding the possibility of a 2+1 configuration with 4" side bites to further refine the rail feel. If you have a midlength of around 6 and a half feet, this fin is your ideal starting point.

WHY THIS FIN MAKES THE DIFFERENCE

The 6.5-inch template is optimized for short midlengths, where response needs to be more immediate than on longer longboards. The key defining features:

• Hold — Enough grip to surf with confidence on the rail without pinning the board down or penalizing speed in steeper sections.
• Drive — The base of the template works to generate speed down the line, taking advantage of the natural agility of shorter midlengths.
• Release — Allows you to break the tail free fluidly to change direction, pivot, or adjust your line based on how the wave evolves.
• Control — Predictable response from small, soft waves to more powerful sessions; the template neither overreacts nor under-responds.
• Dual configuration — Install it as a single center fin or combine it with 4" side bites in a 2+1 setup to add rail bite and more projection in turns.

TECHNICAL SPECIFICATIONS

• Size — 6.5 inches.
• Template — Versatile; suitable for single fin configuration and 2+1 setup with 4" side bites.
• Fin box system — US Box (to be confirmed with distributor).
• Compatibility — All Firewire Surfboards longboard and midlength models.
• Size guide — Select the size in inches that is closest to the length of your board in feet.
• Units — Single fin (1 fin per unit; side bites not included).

EXPERT ADVICE

The 6.5" is the perfect entry point into the Firewire Single Fin line if you are coming from a shortboard background and want to explore the midlength without losing that connection to the rail. Start in a 2+1 configuration with side bites: you will have more bite and the turning sensation will feel more familiar. Once you get to know the board, remove the side bites and ride it as a pure single fin; you'll discover a completely different glide.
— Core Surfing Team

FIREWIRE WARRANTY — THE FUTURE UNDER YOUR FEET

Firewire Surfboards was born in 1981 in Western Australia under the name NEV Surfboards and evolved to become one of the most innovative brands in the global surf industry. Their philosophy combines high performance, maximum durability, and a genuine commitment to the environment.

Firewire holds the official EcoBoard label from Sustainable Surf for its six constructions: Helium, I-Bolic, TimberTek, Volcanic, ProFlex, and FST. Volcanic technology incorporates basalt fibers extracted from volcanic rock, with performance similar to carbon fiber and a significantly lower environmental impact. In its other constructions, the brand integrates recycled EPS foam, bio-resins, and sustainably sourced wood.

Firewire fins are not generic catalog products: they are templates designed in the same creative process as the boards, by the same shapers — Rob Machado, Dan Mann, and Daniel "Tomo" Thomson — to extract maximum performance from each specific shape.

Core Surfing Shop is an official distributor of Firewire Surfboards in Spain. All fins include an official manufacturer's warranty and direct after-sales support in Spanish.

USE AND CARE

• Insert the fin into the US Box and tighten the screw with the included key until firm; do not overtighten to avoid damaging the box.
• For the 2+1 setup, install the center fin first and then the side bites; ensure all three attachment points are properly tightened before entering the water.
• Check the center fin screw before each session; movement in the water can loosen it slightly over time.
• Rinse with fresh water after each session to remove salt and sand from the box and the fin base.
• Store away from prolonged direct sunlight and extreme heat to preserve material integrity.

SIZE GUIDE

The Firewire rule: choose the fin size in inches that most closely matches the length of your board in feet. The 6", 6.5", and 7.2" sizes support both single and 2+1 setups with 4" side bites.

DO YOU HAVE A SHORT MIDLENGTH AND WANT TO EXPLORE SINGLE FIN SURFING?

The Firewire 6.5" Single Fin is the perfect entry point to the line: maximum versatility in the most agile size in the range. Available at Core Surfing Shop with free shipping on orders over €50 and 24-48 hour delivery. Official Firewire warranty and expert advice in Spanish included.