FIBERGLASS MID LENGTH TWIN FIN SINGLE TAB 5.3"

Color
$75.00
1% of sales will be donated to environmental conservation efforts through "1% for the Planet" or its member organizations.

Versatile twin-fin mid-length surfboards, compatible with Futures fin boxes, and featuring fiberglass twin fins.

They boast greater height (depth) compared to conventional keel fins, offering a balanced blend of performance and drive. These all-round fins excel across various mid-length twin fin surfboards.

In addition to nanazero surfboards, they are compatible with surfboards equipped with Futures fin boxes.

*Crafted from natural wood, please note that the wood grain pattern is unique for each fin and may include knots.

*Prior to purchase, kindly verify compatibility with the specifications of your fin box.

*This set includes 2 fins - left and right. Install them with the logo-facing side positioned outward.

 

Specifications

Depth 5.3 in
Base 5.5 in
Area 23.6 sq in
Foil Flat
Cant
Base depth
3/4 in

 

Structure(Wood):Fiberglass, Wood core, Polyester resin

Structure(Others):Fiberglass, Polyester resin

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 3 reviews
    67%
    (2)
    0%
    (0)
    33%
    (1)
    0%
    (0)
    0%
    (0)
    T
    Takatoshi 宅俊
    Light! 軽い❗️

    It's significantly lighter than the twin fin I used before.
    I also love the wood skin appearance.
    Powered by ChatGPT

    今まで使っていたツインフィンより圧倒的に軽いです。
    見た目もウッドスキンで気に入ってます。

    C
    Comeback Surfer カムバック組
    Good Appearance 見た目共に良かった

    Due to being out of stock, I initially purchased and used a keel fin before buying this one.
    The ride has no quirks, and I agree with the recommendations I received from inquiries.
    The wood appearance looks nice, and now I'm using this one all the time. (laughs)
    Powered by ChatGPT

    在庫切れの為、はじめはキールフィンを購入・使用後、こちらを購入させていただきました。
    乗り味に癖が無く、問い合わせからのおすすめにも納得。
    ウッドの見た目も良い感じで、今はこちらばかり使用中です。(笑)

    R
    Rainbow レインボー

    The wood appearance is cool.
    Powered by ChatGPT

    ウッドの見た目がカッコいい

    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 3 reviews
    67%
    (2)
    0%
    (0)
    33%
    (1)
    0%
    (0)
    0%
    (0)
    T
    Takatoshi 宅俊
    Light! 軽い❗️

    It's significantly lighter than the twin fin I used before.
    I also love the wood skin appearance.
    Powered by ChatGPT

    今まで使っていたツインフィンより圧倒的に軽いです。
    見た目もウッドスキンで気に入ってます。

    C
    Comeback Surfer カムバック組
    Good Appearance 見た目共に良かった

    Due to being out of stock, I initially purchased and used a keel fin before buying this one.
    The ride has no quirks, and I agree with the recommendations I received from inquiries.
    The wood appearance looks nice, and now I'm using this one all the time. (laughs)
    Powered by ChatGPT

    在庫切れの為、はじめはキールフィンを購入・使用後、こちらを購入させていただきました。
    乗り味に癖が無く、問い合わせからのおすすめにも納得。
    ウッドの見た目も良い感じで、今はこちらばかり使用中です。(笑)

    R
    Rainbow レインボー

    The wood appearance is cool.
    Powered by ChatGPT

    ウッドの見た目がカッコいい