Speardiver C100 Carbon Spearfishing Fins

Pair of Speardiver C100 carbon fins, medium stiffness blades with Speardiver foot pockets. The C100 are the longer version of our best selling C90 all around carbon spearfishing fins. They're approximately (depending on foot pocket size) 100cm total length including the foot pocket.

The trend in spearfishing and freediving has been moving from long fins (which were revolutionary at one point) to "longer" longfins. Hence we're obliged to offer a competing product. Longer fins offer a little more propulsion at the expense of maneuverability. There's obviously a limit to how long fins can be before they become impractical. Consider carefully the tradeoff. When in doubt choose the C90 (90cm total length) fins, they've been proven to be the performance sweet spot. Choose the C100 fins only if you're experienced enough to know where the tradeoff works in your favor. For example, when there's a lot of stop and go action, direction changes, and quick acceleration/power is required, longer fins will hold you back.

Carbon fins general information

Carbon fiber fins are universally accepted as the best performing fins for spearfishing and freediving. Carbon fins are faster and weigh less than plastic and fiberglass fins. Faster refers to how quickly the fins release the stored energy acquired from being flexed, in other words how they instantly spring back to straight in the water after your kick, resulting in superior propulsion. Being lighter carbon fins are easier to kick allowing divers to swim for longer periods of time without tiring out the legs.

The manufacturing process and materials (carbon fiber and resin) used in the production of carbon blades, must result in blades that are consistent in stiffness and flex characteristics, and most importantly durable. This is no simple task for aspiring small companies offering their single product (fins) in today's saturated carbon fins market. Speardiver Carbon Fins are part of the Speardiver line of proven high quality spearfishing gear, and have met these criteria since their introduction in 2009. Attention to small but very important details such as correct blade surface area (blade length and width), correct toe angle, and quality water channeling rails and rails for installation in foot pockets, have put Speardiver fins ahead of the competition. Our experience with practically all foot pockets available, enables us to manufacture carbon blades that will combine well with different foot pockets, to precisely meet the requirements of an individual diver.  Read reviews from divers using Speardiver carbon fins

Speardiver C100 carbon fins features

• Two year warranty under normal conditions of use.
• Medium stiffness, a light fast blade for all around diving.
• Fishtail front edge profile same as our best selling C90 carbon blades.
• Blade length 34" (86cm).
• Complete fin length (blade and foot pocket) approximately 39" (100cm) depending on foot pocket size.
• Blade width 8.27" (21cm).
• Blade weight 15oz (420g).
• 25º built in toe angle.
• Water channeling rails for stabilization.
• Foot pocket rails for easy installation of the blades in foot pockets. No gluing is needed.
  

Foot pockets

Speardiver foot pockets meet the following essential criteria:

• A stiff sole for good energy transfer from leg to blade. You'll recognize a sole that's too soft when you feel pressure under your foot from the back edge of the blade with every kick.
• Foot pocket tendons of moderates stiffness, providing good support for the blade without negatively affecting its flex characteristics, and channeling water down the blade.
• A soft comfortable pocket.

We are aware of ALL foot pockets available from different manufacturers. If you're considering foot pockets that you don't see offered in our store there is probably a performance related reason why we don't sell it. Regardless of which hype you've heard, ultra light, the "ideal" exaggerated angle, no tendons to allow the carbon blade to work better etc.

Installation options

All modular freediving fin systems that don't require gluing use the rail system for installing blades in the foot pockets. The foot pocket rails are different than water channeling rails. Water channeling rails are important for stabilizing the fin in the water and protecting the blade edges against impact, without adding unnecessary weight to the blade. Most manufacturers cut corners with this aspect of fin making, using a single type of rail for both water channeling and foot pocket installation. We designed and manufactured the Speardiver foot pocket rails specifically for this task. Foot pocket rail shape is important for ease of installation of the blades in the foot pockets, and the holding power of the foot pocket tendons over the blade.  Read more about fin rails

In addition to rails Speardiver foot pockets use an installation kit to securely fix the blade in the foot pocket. The kits, consisting of two plastic plates and two stainless steel screws, require two small screw holes in the blade near the toe angle.