Duotone Finset Glass 15 (SS19-onw) (2pcs)

Maintaining your Duotone Glass 15 fins

Rinse the fins thoroughly with fresh water after each session to remove salt, sand, and dirt. Check them regularly for cracks, chips, and wear, especially around the base where the fin sits in the fin box. Don’t tighten the fins more than necessary, and regularly check that the screws are still secure before you hit the water.

Let the fins dry completely in the shade before putting them away. Store them in a cool, dry place, protected from direct sunlight – for example, in a fin bag or board bag – as prolonged UV exposure can degrade the material over time. Don’t place heavy objects on top of the fins, and avoid contact with sharp objects that could scratch or damage the fiberglass.

Although fiberglass composite is durable, it’s a good idea to replace fins with visible cracks or chips right away to avoid damaging your board or injuring yourself.

How many fins are included in the Duotone Finset Glass 15 set?

The set contains 2 fins made from Duotone's Glass 15 fiberglass composite. It's a spare parts pack for your twintip board.

Are screws included in the set?

No, fin screws are not included. Keep the screws from your old fins, or buy a separate screw set (art. 44900-8072) from Duotone.

Which screws fit the fins?

The fins are mounted with M6 fin screws, which are sold separately. FS 5.0 uses M6 x 14 mm screws.

What sizes is the Finset Glass 15 available in?

The set is available in sizes FS 4.5, FS 5.0, and WK 3.5, so you can match your board's original fin setup.

Do the fins fit my Duotone twintip board?

The fin set is designed as a spare part for Duotone twintip boards and fits the board's standard fin boxes. Check your current fin size if you're unsure which model to choose.

What are the benefits of the Glass 15 material?

Glass 15 is a fiberglass composite that combines strength with low weight and provides reliable grip, control, and stable upwind performance in all conditions.

Can I use the fins to upgrade my old board?

Yes, the set works both as a spare part and as replacement or upgrade fins if your original fins are worn or damaged.

How should I best care for the fins?

Rinse them in fresh water after use, let them dry in the shade, and store them protected from sunlight. Check them regularly for cracks and chips, and replace damaged fins right away.