Lieuwe 45mm & 30mm Twintip Kiteboard Fins | Grip & Control Replacement Fins

The Lieuwe 45MM & 30MM Twintip Fins give you a simple but effective way to fine-tune how your board rides. Whether you want maximum grip for loading up in strong wind or a looser feel for tricks and sketchy landings, choosing the right fin size can make a noticeable difference.

These fins are designed for riders who want to adapt their setup to suit the way they ride. The 45mm option offers more hold and control, while the 30mm option loosens the board up for a more playful, forgiving feel.

Who It’s For

• Discipline: Kitesurfing / twintip riding
• Conditions: Flat water, chop, freeride, big air, wakestyle
• Experience level: Intermediate to advanced, though useful for any rider wanting to tune board feel

Key Features

• Two fin size options
  Choose between 45mm and 30mm depending on the grip and release you want from your board.
• 45MM fins for more grip
  Ideal for riders who want stronger upwind performance, more hold through take-off, and less need to edge aggressively.
• 30MM fins for more freedom
  A smaller fin helps the board slide more easily across the water, which can be useful for wakestyle tricks and recovering from messy landings.
• Simple way to change board behaviour
  Swapping fins is one of the easiest ways to change how your twintip feels without changing the board itself.

Real-World Feel

The difference between these two fin sizes is something most riders will notice straight away.

The 45mm fins give your board a more locked-in feel. You get more grip through the water, better tracking upwind, and more confidence when holding power. For riders going for big air and megaloops, this extra hold can really help during loading and take-off.

The 30mm fins feel looser and more forgiving. The board releases more easily and slides more across the surface, which is exactly what many wakestyle riders want. They also make hard or awkward landings a bit easier to manage because the board is less likely to catch aggressively.

In simple terms, the 45mm fins help you hold your line, while the 30mm fins help you break it more easily.

Fit / Setup Notes

• 45MM setup: Best for freeride, boosting, and riders who want maximum grip
• 30MM setup: Best for wakestyle, tricks, and riders who want a looser board feel
• If you are riding powered and aiming for bigger jumps or megaloops, the 45mm fins are the better choice
• If you are working on trick progression and want a bit more room for error on landings, the 30mm fins are a great option

Why We Stock It

We stock products like this because small setup changes can make a surprisingly big difference on the water. A lot of riders focus only on the board, kite or bindings, but fins are one of the easiest ways to tune grip, control and release. For riders who want to get more from their current twintip setup, this is a smart upgrade.

FAQs

What is the difference between 45mm and 30mm twintip fins?
The 45mm fins give more grip, better upwind ability, and a more planted feel. The 30mm fins make the board feel looser and easier to slide.

Which fin size is best for big air?
For big air and megaloops, the 45mm fins are the better option because they offer more grip and control during take-off.

Which fin size is best for wakestyle?
The 30mm fins are better suited to wakestyle because they allow more slide and make the board less aggressive on landings.

Will smaller fins make riding harder?
They can if you rely on fin grip a lot. Smaller fins give you less hold when you are riding flat, so they suit riders who are comfortable controlling the board through edging and technique.

Can fins really change how a board feels?
Yes. Fin size has a big effect on grip, release, upwind performance, and how forgiving the board feels during tricks and landings.