For Whom?
You must have a good level because the Lethal is very demanding.
With bigger volumes it is easy, but if you take a volume adapted to your weight, keeping balance on your knees in the chop will not be easy. So, you also need to be in good physical shape to be reactive.
This is clearly the board for those who want to go to reach the maximum potential in wing foiling.
For What?
The Lethal is a pure wave riding board.
And because it is narrow, it is comfortable in all levels of performance, including the top speed because the high speed control is fantastic.
Ideal for surfing and perfect in jumps, it is 100% high performance.
What Size?

The Lethal is the ultimate wing board. But by playing on the volumes, we can adapt it to our needs:
Comfort
You can select a volume large enough to float, which is your weight +10 = volume
- Example: I weigh 75kg + 10 = 85L to float. This means that with 85L I’ll be all good as long as I have a good wing level.
Sport
You can also sub-liter because the Lethal is large enough to be stable. If you have a great level and want maximum responsiveness, you can switch to negative volumes.
Up to your weight -10 = volume you can go on your knees while leaning on your wing in the water.
- Example: I weigh 75kg = 75L to slightly sub-liter. This means that with 75L my board will sink lightly and I will have to be precise and sporty at each start.
Sinker
At your weight – 30 = volume, you will have to start by sinking the board: it’s technical, very physical, and you lose part of the low wind range. And above all: you need depth, which can be annoying. The performance gain is debatable depending on your level, but the gain in sensations and responsiveness is interesting for some. It is also the best way to have light equipment, which is essential for the pros and especially for the biggest riders.
- Example: I weigh 75kg – 30 = 45L to use my board as a Sinker. Which means that with 65L and less, my board will completely sink and I will have to start with the help of the wing to get out of the water. In this case, less volume often makes things easier because we sink the board with ease. This makes it easier to place our feet on the deck or in the straps and climb on it. A small board won’t pop out as a cork, therefore easier to make it sink but not as quick to take off. Its stability qualities when on the surface remain the same underwater.
Finally, the most unstable volume is often the one between 10L and 20L less than your weight.
How to choose the size of the board bag for my Wing Foil Board Lethal FSP Pro?

Understanding the GONG range?
The concept of each board of the range can be summed up very simply:
- HIPE First: the perfect inflatable board to learn wing foiling!
- HIPE Free Fly: the best of strapless on an inflatable foil board.
- HIPE Perf: the inflatable foil board with 95% of the performance of a rigid board, in an easy and scalable shape.
- HIPE Cruzader Strapless: the strapless inflatable board with 95% of the performance of a rigid board with an ultra specialized shape, ideal for light wind winging and chilled out SUP foiling.
- HIPE Cruzader strapped : the inflatable board with 95% of the performance of a rigid board with an ultra specialized shape, for the highest performance in light wind winging.
- HIPE Pro: the inflatable board with 95% of the performance of a rigid one with a shape dedicated to advanced foilers who want fluidity and maximum responsiveness!
- Mob 2taste: three sports in one board: SUP, SUP foiling and wing foiling.
- Zuma: the easy rigid board for SUP foiling and wing foiling, and with good performance.
- Lance: the compact Zuma, with great lateral stability, ideal for beginnings in wing foiling.
- Cruzader: fantastic in SUP downwinders, pumping on the flat, but also in light wind conditions in wing foiling.
- Flint: high performance in SUP foiling, great in wing foiling because it is simple and efficient in light wind.
- Kube: pure freestyle board. Minimum length for maximum rotation.
- Mint: compact without being too technical thanks to a perfect length and its round nose. Great performance in strapless too.
- Lemon: maximum reactivity and liveliness, while maintaining stability.
- Lethal: Absolute radicality among volume boards
Some will go for even more extreme with low volume boards like:

Which quiver?
The Lethal is self-sufficient in established wind or generous volumes. You can complete the Lethal with a Cruzader for example or a typical freestyle board like the Kube.
But here we speak of extreme luxury…
The Lethal is made for a very advanced wing practice, and will match perfectly with a kite foil to perform under 10 knots. A wing foil is not at its best under 10 knots. A Catch with a 13m² Strutless and a set of smaller foil wings and go: the ultimate quiver for almost nothing to strong winds.
And when there is really nothing, your quiver will suffer from the absence of a surf board or two. Whether classic or SUP surfing, you’ll need to continue your adventures in windless waves.
And don’t forget surf foiling. It’s the magic combo with wing foiling. When one doesn’t work, the other is great. Because even on super flat days you can practice dock starts. You’ll be in crazy physical shape! The front wings are the same, you would just need a shorter mast.
Which foil wings in Wing Foiling?
To learn and progress:
In the X-Over range: super easy and efficient foils from low speeds to progress smoothly:
- M for riders under 65kg and all wind speeds.
- L for riders under 75kg and wind under 35 knots.
- XL for riders under 85kg and wind under 25 knots.
- XXL for riders over 85kg and wind under 15 knots.
For more experienced riders:
In the Curve range: wings that love to draw pretty lines, with a smooth and eaaaaasy glide:
- S for those under 75kg or heavier riders in winds above 20 knots.
- M for those under 85kg or heavier riders in winds above 15 knots.
- L for everyone and heavier riders in winds above 12 knots.
- XL for everyone in light conditions and the heavier riders in winds below 20 knots.
- XXL for everyone in very light wind and the heavier riders in winds below 12 knots.
In the Fluid range: wings for a radical drive but easy and relatively fast:
- S for those under 75kg or heavier riders in winds above 20 knots.
- M for those under 85kg or heavier riders in winds above 15 knots.
- L for everyone and heavier riders in winds above 12 knots.
- XL for everyone in light conditions and the heavier riders in winds below 20 knots.
- XXL for everyone in very light wind and the heavier riders in winds below 12 knots.
In the Veloce range: fast wings that love curves, and still are easy at low speed:
- S for those under 75kg or heavier riders in winds above 20 knots.
- M for those under 85kg or heavier riders in winds above 15 knots.
- L for everyone and heavier riders in winds above 12 knots.
- XL for everyone in light conditions and the heavier riders in winds below 20 knots.
- XXL for everyone in very light wind and the heavier riders in winds below 12 knots.
In the Sirus range: wings with the ultimate aspect ratio to fly before everyone else in marginal conditions:
- L for those under 75kg in winds under 12 knots.
- XL for those under 85kg in winds under 8/10 knots or the heavier riders in winds under 15 knots.
- XXL for those under 95kg in winds under 6/8 knots or the bigger riders in winds less than 12 knots.
- 3XL for everyone in the very light wind and the bigger riders in winds under 10 knots.
For the pros:
The Curve H, Fluid H, Veloce H, Ypra or Ypra S ranges are very high performance and fast wings: remember that the H versions offer an insane glide for each of their specific use. The Ypra wings for instance are simply the wings of our pro team on the World Tour.
In the Curve H range: wings with a crazy glide that love to draw pretty lines, with a smooth and eaaaaasy glide:
- S for those under 75kg or heavier riders in winds above 20 knots.
- M for those under 85kg or heavier riders in winds above 15 knots.
- L for everyone and heavier riders in winds above 12 knots.
- XL for everyone in light conditions and the heavier riders in winds below 20 knots.
- XXL for everyone in very light wind and the heavier riders in winds below 12 knots.
In the Fluid H range: wings with a crazy glide for a radical drive but easy and relatively fast:
- S for those under 75kg or heavier riders in winds above 20 knots.
- M for those under 85kg or heavier riders in winds above 15 knots.
- L for everyone and heavier riders in winds above 12 knots.
- XL for everyone in light conditions and the heavier riders in winds below 20 knots.
- XXL for everyone in very light wind and the heavier riders in winds below 12 knots.
In the Veloce H range: fast wings with a crazy glide that love curves, and still are easy at low speed:
- S for those under 75kg or heavier riders in winds above 20 knots.
- M for those under 85kg or heavier riders in winds above 15 knots.
- L for everyone and heavier riders in winds above 12 knots.
- XL for everyone in light conditions and the heavier riders in winds below 20 knots.
- XXL for everyone in very light wind and the heavier riders in winds below 12 knots.
In the Ypra range: the racing wings par excellence intended to sail upwind and downwind, typically on a square or triangle racing course:
- XS for those under 55kg or the heavier riders in winds above 20 knots.
- S for those under 65kg or the heavier riders in winds above 20 knots.
- M for those under 75kg or the heavier riders in winds above 15 knots.
- L for everyone and the heavier riders in winds above 12 knots.
- XL for everyone in the light and the heavier riders in winds below 20 knots.
In the Ypra S range for Slalom : racing wings with maximum curves / jibes, also great for Freestyle:
- XS for those under 55kg or the heavier riders in winds above 20 knots.
- S for those under 65kg or the heavier riders in winds above 20 knots.
- M for those under 75kg or the heavier riders in winds above 15 knots.
- L for everyone and the heavier riders in winds above 12 knots.
- XL for everyone in the light and the heavier riders in winds below 20 knots.
In the Sirus range: wings with the ultimate aspect ratio for marginal conditions:
- L for those under 75kg in winds under 12 knots.
- XL for those under 85kg in winds under 8/10 knots or the heavier riders in winds under 15 knots.
- XXL for those under 95kg in winds under 6/8 knots or the bigger riders in winds less than 12 knots.
- 3XL for everyone in the very light wind and the bigger riders in winds under 10 knots.
At this level, everyone can adapt their equipment to their needs. Just remember that the wingspan is a point to take into consideration when riding high aspect ratios. The glide is fabulous, but be careful not to sacrifice maneuverability and rail-to-rail precision by using large sizes if you are looking for a very reactive drive. This is why even the pros do not necessarily ride in high aspect ratios!
The size of the front wing and in particular its surface and its volume condition the speed/lift ratio. The smaller the wing, the faster you will go but the more uncomfortable you will be at low speeds. The bigger the wing, the earlier you will fly but you’ll be penalized in handling and top speed.
Which Stab?
The stabs have a major role. They determine the stability of the foil and help with its lift, but to the detriment of the maximum speed of the foil and its maneuverability if they are too large. The role of the stabilizer is to stabilize the foil but also to compensate for the natural tendency of the front wing to dive. So you must have a good balance of surfaces between your stab and your front wing. A 38 cm stab with an XXL wing will give a catastrophic result at high speed: the foil will dive at high speed because the stab will no longer be able to lift enough to counteract the nosediving torque of the front wing.
Remember that the stab must be proportional to the front wing. This is why we have named them S M L XL like the front wings so that you can pair them easily. Creating an imbalance brings no benefit except the illusion of better glide.
Thus the X-Over stabs are slower than the Fluid or Veloce stabs, but are much more lifty, and therefore effective at low speed or with a large front wing (for beginners for example). The Curve stab is at the border of these two worlds and the Freestyle stab is 100% dedicated to radical moves.
In the X-Over range: super easy and effective stabs from low speeds to progress smoothly:
- L 44 for those under 75kg and for everyone in winds above 15 knots.
- XL 48 for those over 75kg and for everyone in winds below 20 knots.
In the Curve range: very simple stabs that love beautiful curves, with a stable and smooth glide:
- S 36 for those under 65kg and for everyone in winds over 25 knots.
- M 39 for those under 75kg and for everyone in winds over 20 knots.
- L 43 for those under 85kg and for everyone in winds above 15 knots.
- XL 46 for those over 95kg and for everyone in winds of less than 20 knots.
In the Fluid H range: stabs with a crazy glide for a radical drive but easy and relatively fast:
- S 38 for those under 65kg and for everyone in winds over 25 knots.
- M 42 for those under 75kg and for everyone in winds above 18 knots.
- L 45 for those under 85kg and for everyone in winds above 12 knots.
- XL 47 for those over 95kg and for everyone in winds below 20 knots.
- XXL 49 for everyone in very light winds and bigger people in winds below 12 knots.
In the Veloce H range: the fast stabs dedicated to high speeds which are off your mind when riding:
- S 36 for those under 65kg and for everyone in winds over 25 knots.
- M 40 for those under 75kg and for everyone in winds above 20 knots.
- L 44 for those under 85kg and for everyone in winds above 15 knots.
- XL 47 for those over 95kg and for everyone in winds below 20 knots.
In the Freestyle range: stabs totally dedicated to tricks with a psycho pop and tight curves:
- S 39 for those under 65kg and for everyone in winds over 25 knots.
- M 41 for those under 75kg and for everyone in winds over 20 knots.
- L 44 for those under 85kg and for everyone in winds above 15 knots.
- XL 46 for those over 95kg and for everyone in winds of less than 20 knots.
Which foil mast?
In other words, everything will be played out between 85cm and 100cm. You can find all our advice on choosing between these two lengths by clicking here.
In summary, for waves and freestyle, but also for beginners and progressing, an 85 mast is ideal. Simple to put in the water, an easy rail to rail, it’s perfect. A 90 cm mast and above is great for Racing by offering more margin at high speed, namely in choppy conditions, but isn’t as maneuverable. All our masts : here.
Positioning of the foil?
For GONG foils, place the plate in the rear third when you start and in the center of the US rails when you progress. The Pros can position the foil even further towards the front for more lift and maneuverability.
The more you move it forward, the more the board will pitch nose-up. The more you move it backwards, the more the board nose-dives.
Be careful not to move it too far forward. We often tend not to let their back foot work, especially when we come from kite foiling. However, moving the foil back a little, forces more weight on the back foot and gives a more harmonious attitude and reduces effort.
Which leash?
Take a 6′ of 7mm minimum diameter.
Check its condition before each session and change it every year. It is your lifejacket and the life insurance of the people in front of you.
Strap or Strapless?
Riding strapless is sexy because it makes you feel free. But quite honestly, it’s not the best for performance…
So, it’s up to you to see if sensation prevails over performance. On a Lethal, we’re clearly going to miss 90% of its potential without the straps.
With straps, you’ll have much more control and much less risk of getting the Foil flipping under your feet. In the waves, it’s obvious, you gain a lot with straps. You can recuperate from crazy situations just by pulling up on your feet.
Put your straps in a central position (3rd hole) for the front, and the same goes for the back strap if you always ride with the back strap (it can be used as a marker stop).
How to place and adjust your straps?

lou.thouin –
Cette board est génial, en surf elle est super maniable et en freestyle elle est super efficace sur les réception le “repop” ce fait tout seul !!
Max –
Voici la machine à take-off!!! 12 nœuds, Neutra 2023 4.5, sans même pomper la wing… quatre coups bien placés du pied avant pour faire rebondir le nose et voilà, c’est parti !! décol immédiate!!! ??
Tien Tran –
retour sur une semaine de navigation avec ma nouvelle lethal 2023 65l.
Rider 70kg sans combi.
Test en Neutra 2023 4-5m et véloce MH 750
Tout d’abord la planche est magnifique, Le nouveau pad est vraiment super agréable et hyper qualitatif.?
Les nouveaux straps 2023 sont plus rigides, le pied ne bouge pas une fois chaussé (le nouveau pad doit aider également ) les changements pied se font instinctivement sans jamais taper dans le strap?
L’ensemble est bien rigide et très léger.
Le système SCS présent sur la nouvelle gamme est un petit gain de temps mais c’est tellement confortable de monter son foil en 2 temps 3 mouvements ?(on devient faignant ?)
J’ai d’ailleurs remarqué qu’avec le nouveau box j’ai reculé d’un centimetre mon réglage par rapport au modèle 2022 pour avoir les mêmes sensations
A genoux elle est très étroite mais rien d’insurmontable, le bulbe au nose de la planche est une vraie révélation, elle apporte un confort assez dingue, je l’a situerait entre une hipe pro 4.6 et une lemon 4.6 en terme d’équilibre.
J’avais eu l’occasion de tester la LETHAL 2022 et j’avais été dérangé a cause du faite qu’elle basculait trop dans le light
Premier décollage et tout de suite on sent bien que la planche glisse, glisse et glisse! Idéal pour les frontwing H.
La LETHAL ne colle pas du tout à l’eau comme pouvait faire mon ancienne lemon. J’ai l’impression d’avoir encore gagné en plage basse grâce à sa glisse irréprochable.
Dans les surfs, on est plus proche du foil donc plus précis, la faible largeur de la LETHAL rend les touchettes inodores.
On se rapproche des sensations du surf foil.?
Dans les sauts (simple et Riley) la planche repop immédiatement en réception. Du pur plaisir à venir. ??
Tout ce que je pouvais reprocher au modèle 2022 à été corrigé et amélioré ? on se rapproche de la planche parfaite.?
J’en fais ma planche de tout les jours couplé a ma hipe pro 4.6 pour les vacances et les road trips.
Bravo à la team gong pour ce magnifique travail. J’ai un vrai bijoux sous les pieds.???
Stephane –
Test de la lethal 2023 45 litres !
J’appréhendais qd même un peu le passage en wingfoil d’une board Lethal de 80L 2022 à 45 litres 2023.
Ça passe très bien finalement ,-)
Mais je n’ai qd même gardé la 80L pour petit temps !
C’est un petit modèle, très maniable, poids plume qui ne sent casi plus dans les sauts notamment. Beaucoup moins l’effet de balancier d’une plus grosse planche de wing.
Pont rabaissé top. Effet bulbe à l’avant. Ça fend l’air…et l’eau a toute allure.
Côté straps et pads, on colle à la board …même en chaussons neoprene.
Testée avec FLUID HM 1000cm2 et plus de 20 knots à 30 knots en 5m2 puis 4m2. Je fais 84 kg. Top combo ! Gros plaisirs
Merci GONG Galaxy #gongfoil #wingfoil #GONGSurfboard
Décolage nickel dans un peu plus de 20 knots : Je coule la board en me mettant à genoux (je crochette le strap de derrière avec les orteils pour éviter que la board ne remonte hors de l’eau..si je la mets trop verticale) et je prends la wing à 45 degré (en ayant la board casi vent arrière), les 2 mains sur les 2 poignées direct.
Dès 20 knots, plus de craintes de ne pas arriver à démarrer.
Dans les molles, la board coule…jusqu’à la taille qd même..donc il faut bien gérer l’assiette de la board pour la faire remonter en surface en qq coups de pomping. Plus physique donc pour un retour sans vent ! Vigilance donc.
Frédéric Huet –
Retour sur la Lethal 4’10 85L 2023.
Elle marche grave ?. C’est vraiment ce que je recherchais depuis plusieurs mois. Je commençais à regarder vers une 80L pour plus de radicalité (plus étroite pour partir plus vite tourner plus fort et plus d’agilité sur les sauts et les surfs) mais j’étais frileux compte tenu de mon poids 87kg et de mon niveau… et j’ai bien fait d’attendre en découvrant cette gamme 2023 avec plus de tailles ?…et une 85L.
Je suis passé depuis 1an,en mixant à différentes périodes, de par les tests et planches perso, Lethal 95L Hipe Pro 95L Lemon 95L Lemon 58L Lemon 45L…? à maintenant cette Lethal 2023 85L.
Ce qui ressort pour moi le plus c’est qu’elle est étroite (59cm) moins volumineuse et stable malgré tout et cela apporte un vrai plus, ça a clairement booster mon niveau. ? merci GONG Galaxy.
Tout d’abord dans le départ en vol ça pousse moins d’eau elle glisse plus, j’ai plus de mini qu’avec la Lemon 95L. En navigation au près par exemple on peut prendre beaucoup d’angle sans toucher l’eau (vs une Lemon en 67cm par exemple) ce qui en fait une super planche pour se tirer la bourre ou se replacer en conditions surf, idem dans les turns dans les vagues on peut rider beaucoup plus radicalement, et là les tips du foil sortent +++.
Le bulbe à l’avant est top ça permet de moins enfourner en cas de touchette ça rebondit. Du coup au près c’est top et en réception de saut c’est plus facile, ça apporte de la stabilité.
A l’arrêt à genoux (vs une Lemon 95L 67cm de large) ça demande plus de précautions c’est clairement moins stable (10L de moins aussi ?) mais une fois de l’air dans la wing c’est kiff kiff, il faut baisser son centre de gravité et le tour est joué (les épaules dans les genoux).Une fois debout l’arrière coule bien plus mais ça reste étonnamment stable comme un plan anti dérive, néanmoins je ne peux encore changer de bord sans tomber ? sans voler chose que j’arrivais à faire avec la Lemon 95. Par contre ça part plus vite sans être plus technique, elle glisse plus on peut pomper plus facilement sur les jambes (technique du bouchon), ce qui compense grandement, les départs en switch sont du coup bien plus simple.
Ses proportions longueur largeur font qu’on a l’impression de rider une planche plus longue au départ visuellement (pourtant 4’10 vs 5’0) sans pourtant autant que ce soit encombrant au contraire.
En saut c’est du caviar elle prend bien moins le vent en appel et en l’air, ça tourne vite et fort, le bulbe sur le nose aide à réplaquer et repartir au plus vite.
Pour moi c’est le compromis idéal entre mania et facilité on ne coule pas en réception et on est stable pour repartir sans miserer.
Une planche moins volumineuse comme mes Lemon 45L ou 58L sont tops en therme de mania mais en réception clairement moins facile et elles demandent une énergie folle ou un niveau que je n’ai pas de mes 42ans et 87kg surtout dans le chantier.
Je dirai aussi qu’elle semble beaucoup plus vive sous les pieds le feeling est très direct elle obéit aux doigts (pieds) et à l’œil ?. Je ne sais pas si ça vient du pad plus ferme des straps plus précis ou du pont abaissé mais c’est plus précis. Associé à un mat HM 85 et une Ypra S M ça dégomme ?.
C’est pour moi la planche unique à tout faire de 12nds à 40nds et +, même si elle demande un petit niveau (bientôt 3ans de wing pr ~100sessions par an)
Enfin les foostraps sont plus précis ainsi que le pad plus ferme, le système scs (connection mat/planche) facilite la vie ?.
Filippo –
First test lethal 4.8. 75 LT, 4.5 neutra, 16/18 knots, flat. Great feeling since the first fly. Light and lively under feet.
François –
Grosse magie cette lethal 2023 4’10 85litres ??
A peine 5.3 kg à la pesée, pour une planche de série c’est juste fantastique.
De plus elle est vraiment superbe et le nouveau shape est splendide.
Bravo pour le design, et et les nouvelles modifications comme les rails verticaux , ça sent clairement l’accélération pour le départ au planning..
Bref j’ai hâte de l’essayer
Melvin –
J’ai l’occasion de tester la nouvelle Lethal 4’6, 65L. Première mise à l’eau, on ressent directement qu’elle est plus stable à l’arrêt que l’ancienne génération, grâce au bulbe sur le nose et aux rails plus verticaux. En plus le décollage est encore plus rapide :rocket:
Dans les vagues la finesse de la planche permet de serrer davantage les courbes, on peut attaquer très fort en carving! En réception de saut je trouve que le bulbe à l’avant permet de rebondir et de re-décoller pour rapidement. On gagne en confort et en efficacité, c’est parfait! :heart_eyes:
Une nouvelle version très réussie, plus radicale en vol tout en étant plus facile avant le décollage. C’est la planche référence pour les vagues.
En plus, nouveau design est épuré et classe, j’adore.