FIBERGLASS CENTER FIN ALL ROUND 7"/8"/9"/10"

Color
サイズ
$87.50
1% of sales will be donated to environmental conservation efforts through "1% for the Planet" or its member organizations.

Embodying versatility and balance, nanazero's all-round center fin is an optimal choice for various surfboard configurations. Its larger size is tailored for single-fin longboards, while the smaller and medium sizes complement mid-length and performance single-fin setups, as well as 2+1 configurations. Choose the appropriate size to suit your specific needs.

Featuring a wide base width for stability and drive, and a tapered shape towards the tip for enhanced speed and maneuverability, this fin allows for confident acceleration from the bottom turn and smooth, enjoyable arcs.

Crafted from Volan material, these fins offer high flex properties, ensuring superior control even in less powerful waves. They are highly recommended for surfers seeking versatility to handle diverse conditions with a single fin.

Compatible not only with nanazero surfboards but also with surfboards featuring a common center fin box.

*Please ensure to check the specifications of your fin box before placing your order.

*This purchase includes the center fin only; side fins are not included.

 

Specifications

Depth 7"
8"
9"
10"
Base 5.3 in 6.1 in 7.0 in 7.5 in
Area 21.3 sq in 28.8 sq in 36.1 sq in 43.8 sq in
Foil 50/50
50/50
50/50
50/50

 

Materials:Fiberglass Volan, Polyester resin

Accessories:Plate & screw included for fixing to the board

 

Term related to Fin

We will explain the terminology and principles behind the elements that define the characteristics of fins:

fin

Base

The length of the horizontal part where the fin meets the surfboard.

A longer base enhances drive power and facilitates speed gain. Conversely, a shorter base improves turning performance and makes turning easier.

Depth

The length (height) of the vertical part of the fins protruding from the surfboard into the water.

Greater depth increases stability but also increases turn resistance. Conversely, smaller depth results in smoother turns but sacrifices stability.

Area

The area where the fin extends outside the fin box.

A larger area enhances stability and drive power but increases resistance. Conversely, a smaller area facilitates easier turns.

For longer boards and heavier riders (and boards), a larger area is required.

Sweep

The angle of inclination of the fin.

A greater sweep angle increases stability and drive power but also increases turn resistance. Conversely, a smaller sweep angle improves turning performance, results in smoother turns, and reduces turning radius.

Foil

Bulges on both sides of the fins.

Foil controls water flow. The "50/50" configuration, with bulges on both sides, is commonly used for center fins. The "Flat" configuration, flat on the inner surface and bulging on the outer surface, is commonly used for side fins.

fin

fin

 

Cant 

The angle at which the fin is tilted from a vertical angle of 90 degrees to the bottom surface of the surfboard.

Center fins are usually at 0 degrees (perpendicular to the board), while side fins are angled a few degrees. This angle increases water resistance when the board is tilted, enabling sharp turns.

 

【Reference】https://pocketsurf.jp/surfboard_fin

Notes
  • Some foreign substances, such as black dots, may be present due to the nature of the manufacturing process. Thank you for your understanding.
  • Scrape marks resembling grazes may be visible on the base due to the manufacturing process, but they are not considered defects.
  • While nanazero's fins are inspected to conform to the fin manufacturer's standard size before shipping, in rare cases, they may be difficult to fit due to compatibility issues with the fin box, or the fins may wiggle if the box is too large.
  • If the fins do not fit, do not force them, as they may become stuck. Instead, adjust by gently scraping the bottom of the fin with sandpaper.
  • If the fin wiggles and does not sit securely due to the fin box being too large, adjust the base thickness by applying aluminum tape for stability.
  • Fins made of hard materials can cause injury upon contact. Please exercise caution to avoid contact with people during wipeouts. If the fin tip is sharp, rounding it with sandpaper can help prevent injuries.

    Customer Reviews

    Based on 1 review
    100%
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    K
    Kazu カズ
    About the Fins フィンについて

    The fins have a translucent look, which I think is a nice design. When used on waves chest-high or above, the fins catch well and provide a good drive.
    Powered by ChatGPT

    見た目透き通った感がありいいデザインだと思います。使った感じは胸以上だとフィンの引っかかり良くドライブ感があります。

    Guide to Choosing Fins

    A guide to choosing for beginners and those who are not sure how to choose the right fins for their surfboard.

    nanazero's 3 Promises

    Pursuit of Quality

    Although we are a young brand, we have partnerships with leading factories that have a long track record in the surfing industry.

    We combine their technology with Japan's high quality standards to develop high-quality products.

    Cost-Effective

    Through online-centered direct sales from manufacturers, we reduce intermediate margins in the distribution process and store operating costs, and return them to our customers.

    Good products, at a fair price.

    Best Buddy

    If you have any questions or concerns, please feel free to contact us at any time.

    Even if you are a surfing beginner, we provide an environment where you can easily and confidently purchase online.

    Giving back 1% of Sales to the Planet

    nanazero donates 1% of its sales to environmental protection organizations through "1% for the Planet " with the aim of contributing to the conservation of the ocean and nature.

    Sustainability and protecting the planet are always on our minds, and joining "1% for the Planet" is a commitment to protecting the environment for nanazero users and us.

    WARNING “This product can expose you to chemicals including DEHP, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.”

    Customer Reviews

    Based on 1 review
    100%
    (1)
    0%
    (0)
    0%
    (0)
    0%
    (0)
    0%
    (0)
    K
    Kazu カズ
    About the Fins フィンについて

    The fins have a translucent look, which I think is a nice design. When used on waves chest-high or above, the fins catch well and provide a good drive.
    Powered by ChatGPT

    見た目透き通った感がありいいデザインだと思います。使った感じは胸以上だとフィンの引っかかり良くドライブ感があります。