How to Install Boost Fin on Different Boards (Step-by-Step)

Gliding across the water — whether on a SUP or a surfboard — has a magic of its own. The balance, the rhythm of each stroke, the rush of catching a wave: it’s simple, timeless, and endlessly rewarding. Traditionally, all it took was a board, a paddle, and a fin to keep you on track.

Now there’s a new way to experience it. The Boost Fin adds a small motor to your setup, giving you extra thrust exactly when you need it. Think of it as a smart upgrade: it doesn’t replace your paddling or surfing skills, it just helps you ride further, glide faster, and save energy for the moments that matter most.

Best of all, installing Boost Fin takes just a few minutes and no special tools. In this guide, we’ll walk you step by step through the process, so you can enjoy smoother, longer sessions on any board.

1. Prepare Your Board

Start by placing your paddle board, surfboard, or kayak on a stable, soft surface such as grass, sand, or a yoga mat. This prevents scratches.

• Remove any existing fin.
• Wipe down the fin box to clear sand, dirt, or salt residue.

• Make sure your Boost Fin and adapters are within reach.

2. Attach the Right Adapter

Boost Fin comes with multiple adapters to match the most common fin box types:

• US Box Adapter – Found on many hard SUPs and surfboards.

• Slide-In Adapter – Common with inflatable SUPs (iSUPs).

• FCS / Futures Adapters – Popular with surfboards and performance SUPs.

• Stick-On Fin Box – A glue-on option for boards without a standard fin box.

Key point: Picking the correct adapter is what makes Boost Fin a true SUP upgrade — it’s designed for versatility.

3. Mount the Boost Fin

Once the adapter is in place, align the Boost Fin with the slot.

• Slide the fin into the adapter until it clicks or locks.
• Make sure the locking mechanism is engaged.

• Double-check that the fin feels snug and stable.

4. Do a Final Check

• Wiggle the fin slightly — it should be secure with no wobble.
• Turn on the Boost Fin and check remote pairing.
•  Ensure the battery is charged (full charge = up to 100 minutes runtime).

Switching boards? Just detach the fin with its adapter and reattach to another board — the process takes less than 5 minutes.

✅ That’s it! Your Boost Fin is installed and ready. Now you can enjoy smoother paddling, longer rides, and less fatigue — no tools required.