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Cube 6

Carbon & S-Glass.

Generation 6.


Cube 6

Carbon & S-Glass.

Control Quad

Real world speed for onshore wave performance.


This 6th generation has the biggest performance upgrade yet with the new V-Double-Single bottom shape, increasing speed and grip with the same easy to use volume distribution and compact outline to fit into the tightest pocket.

Available in 74, 78, 82, 86, 92, 102 liters.
IWT and PWA World Cup Approved.
Carbon & S-Glass Hull technology, Vacuum lamination.
All new Quatro ® US finboxes, custom made, ultra light: 4x 5.5”.
All new MFC ® fins and footstraps.
All new KT Surfing ® Single to Dual Density Traction Pads, sloped, segmented, tactile grooved, ultra light.
Hyper Skin GW, High Density Full Sandwich.
Carbon Monocoque, connecting masttrack and stance to rails and bottom, forming a cohesive whole.
Available in Metallic Silver and Neon Yellow Tech-Reveal GW finish over Carbon, with inverted artwork and charcoal pads.

Stock Sizes.



Share your opinion

The space below is yours to share your thoughts. Find existing reviews below. Asterisks denote required fields.



Cube Pro SKU UPC Model
Jorge, Portugal  
Jul 23, 2023 

I have been always a Quatro addicted wave rider in the last years and I have owned several Quatro boards. My preference for wave riding goes always to quad Cube boards (my usual conditions are side and sideon). The latest I bought was the 2023 75l Cube Pro board. Compared to my oldest ones I found it quite agreeable, snappy and controllable in strong winds (more than 40 knots), but requiring some fine tuning. Due to a smaller volume in the back and thinner rails, I had to put the mast base a little more to the front and be more gentle with the back foot handling. Compared to my 2020 80l board I confess missing a little more volume in the back, but nothing obstructing my wave riding. For sure I will have to test it further, namely with not so strong winds, but I believe the first impressions endures, when you already have some experience.

Richard, UK  
Oct 26, 2022 

Once again, this board has delivered. Even in 35kts side-on in the English Channel today, this board has done the biz. I was on a 3.9 and the Cube 104; I am 82kg and have sailed for 42 years. Thank you KT for such an excellent onshore wave board.

Richard, UK  
Oct 26, 2022 

Again, twice in the last two sessions, the 104L Cube has proven to be the board of choice: 1. 28 – 40kts on a 3.9: its versatility allowed me to have the best backside riding ever. 6-8ft faces onshore in the English Channel; 2. 17-20kts cross-on with a 5.6 and shoulder-high swell scored rewarding rides when all others had packed it in. Ever thankful to KT for shaping such a versatile onshore work of art. For reference: 5'9"/82kg in winter wetsuit.

mahalo nui loa i? ?oe,


Richard Hypher

vincenzo, Italy  
Oct 19, 2022 

Cube 106: I used this one time in Italy in side-sideon condition and I was impressed of the radius of my bottom and the plane capacity (compared with my previous Patrik qtwave 103 quad).

Olli, Germany  
Aug 27, 2022 

On Aug 25, 2022, at 11:22 AM

Hello I have a cube 87l and like to use a twinzer fin setup for the usage in Germany at the Baltic Sea.
The conditions are mostly onshore with mushy small waves and therefore I do not need a quart set up.
Sailrange will be 4.7 to 5.3 rider weight 83kg age 58J
My question is dose the board work as an twinzer fins ?
If yes what will be your recommendation for the fins type and size.
Many thanks and best regards fron Hamburg,

Hello Olli,

Great to hear from you.

Yes, you nailed on the head. Twin will work even better for your conditions as the board slides more and becomes more unpredictable = + Fun.

So just put the side covers on it and see how it rides. If it is too much, just move the fins back.

Right now, your back fins are 16cm. You could move up to 16.5cm or 17cm since you are 83kg, but I would first try to get used to the smaller fins placed back if any. It is so much more fun.

Please let me know if you have any other questions or if there is anything that we can help with.

All the best winds this fall!

Francisco & Team

George, USA  
May 30, 2022 

I finally got out the gear yesterday at Doug's. I am blown away! The Banzai X 3.4 with the 100 370 and skinny boom felt like a butterfly's wing in my hands! And the Cube 81 turned so radically I actually tripped over it when I carved hard upwind for a backside hit! Now I understand how MB makes those crazy turns.

Dawson, USA  
May 03, 2022 

Quatro's relentless pursuit of excellence once again manifests itself in boards that are at once both attainable and aspirational.  I am 5'10" 170 lbs aspiring wave sailor.  I sail mostly in side-on shore to side shore conditions with waist to head high waves ±40 days a year.  This is my fourth Quatro quad board. Every new iteration leaves me dumb founded on how there can be massive leaps forward when you would think it would only be a slight evolution.  Initially before purchase, I had the mental screen freeze when choosing between the 82L and  the 87L.  I was nervous that the 87L was going to be too big for my typical 4.7m2 sessions where the wind can be super gusty but my trusted Quatro confidant assured me the 87L was the choice.  Rest assured the  Cube 87L never felt too big.  It turns and maneuvers like a much smaller board.  A bonus with the 87L, when schlogging in super light lulls there is enough float to have confidence that you will make it out through the break.
Paradoxically the Cube Pro 87L can accelerate onto a plane very quickly yet it's profile/shape allows us mere mortals to get into near vertical position on wave face.  The Rocker shape, rail profile and quad set up give the board the responsiveness and intuitive feel that allows you to rip bottoms turns super locked in and the confidence to attack the lip in situations which in the past would have resulted in me getting pummeled.  This board is the gateway drug to rad wavesailing.  KT's design and development team are light years ahead of competition.  If you love windsurfing, and your time on the water is your addiction, then don't wait, these boards are NEXT LEVEL 

4.9 5.0 7 7 I have been always a Quatro addicted wave rider in the last years and I have owned several Quatro boards. My preference for wave riding goes always to quad Cube boards (my usual co Cube Pro
Cube Pro SKU UPC Model
Goyajoe, USA  
Jul 31, 2021 

I have owned the Quatro Cube 98 a little over a year now Mean Green does it all 3.5 to 5.0 Cape Hatteras The Gorge home on the Great Lakes just works and is FUN all the time bump and jump to all kinds of wave conditions at 190 lbs one board quiver!!!

Rob Mulholland, Ireland  
Aug 10, 2020 

Hi all, thought I would share my opinion on my new 2020 Quatro Cube’s 106 and 87L. Purchased as lockdown blues busters to replace my 2017 85L Cube and 2018 103 Supermini.
Firstly the 106, I’ve had a chance to sail it in pretty much all conditions. As a float and ride board it preforms really well. Providing a platform to pickup waves when the wind is only enough to keep upright and plod along. As soon as the wave is steep enough the board (with some encouragement) planes quickly allowing the sailor to catch waves when not going out seemed a better option. In windier conditions the first thing I noticed is the board’s ability to carry speed in all water states. For its size this is a fast board, the control at speed inspires the sailor to rip harder on the wave face, bottom turn grip at speed will please most wave sailors as will the boards turn off the lip.
The 87L Cube is a true joy to sail, it has all the wave performance of the 106 and then some. What truly stands out on these boards is their early planing coupled with effortless speed and control making them extremely easy to sail. What this translates to is a fairly potent combination of jumping and wave riding in a user friendly package. My old 85 Cube was my all time favourite wave board, but having sailed the 2020 87L cube in most conditions I would say it’s like my 85 on steroids.
Well done Quatro on continuing to shape lovely wave boards, and thanks for the advice on setting the boards up for on or off shore conditions.

Eric, France  
Jun 10, 2020 

I recently bought the new Cube 82L, it’s a fantastic wave board for all European conditions, this Quad has a really fast planning , comfortable and stable in strong wind conditions, last session with a Blade 4.2, easy for surfing, I’m very happy with this acquisition.
Great job Quatro team

Dennis, Spain  
Nov 08, 2019 

Thanks to the nice guys at TWS Tenerife i was able to try the new quad in different conditions in different sizes (87,93 and 98 with Blade pros 4,2 and 4,7). I was absolutly blown main board is a 2018 cube quad 85, wich i always loved..but now i will change to the new modells..all that is written above is absolutly right. the new quad is quick, comfortable to ride, turney and drivey with a good ammount of grip..and of course it looks great with a longlasting design. I rode them mostly in side-on conditions with 1,5 - 2m wave..
The guys did a perfect job..thanks for that..

4.9 5.0 7 7 I have been always a Quatro addicted wave rider in the last years and I have owned several Quatro boards. My preference for wave riding goes always to quad Cube boards (my usual co Cube Pro
Cube SKU UPC Model
Richard Hypher, England  
Aug 04, 2022 

Please see previous - I meant to give the Cube 104 five stars!

Richard, England  
Jul 29, 2022 

Bought a 2018 104L Cube a few days a ago and tried it in 20-25kts, head-high cross-onshore waves with a 5.6. I am 83kg and have windsurfed since the early 1980s. The Cube is absolutely superb - it performs exactly as Keith says that it should; gets out through the whitewater easily; carries speed through the bottom turn and still is snappy off the top. Superb!

Pete, Leasowe  
Jun 06, 2020 

Recently bought the 86l 2019 Quatro Cube after riding single fins for the last 28y. It’s absolutely amazing. After sailing it 6 times I changed the stock fins to K4 Leon Stiff rears (16cm) and K4 SharkII fronts (8cm) to enable earlier planing but maintain the gouging bite on the waves.... it’s even better than ever now. The volume is excellently distributed so that I no longer stall the tail in mushy gutless waves and the squash diamond tail, fin positions and rail profile enable it to spin on a sixpence..... this has been the best windsurfing purchase I have ever made. Well done and thank you to everyone involved in the design, shaping and manufacturing

yan, France  
Sep 07, 2018 

Great toy !
Works as well in mushy on-shore conditions as in side/side-off glassy waves.
I already posted a review, but I recently had the chance to test in pure surfing terms and I'm so happy about that board that I had to say a few more words about it 🙂

Harry Tzouvelis, Greece  
Aug 20, 2018 

Cube 95: Best board i've had so far. Planes immediately, turns like no the other i've ever ridden - been windsurfing since 1981 i've had lot of boards!!!

georgi, Bulgaria  
Jul 16, 2018 

Cube 74 2018: simply a fantastic board! KT unsurpassed.

yan, France  
Jul 08, 2018 

Fantastic !! Quick planing and extremely easy to manoeuvre. A lot of grip in the turns.
Used it mostly in on, or side-on shore conditions for now, with a twin setup.
Love it !!!

Diego, Australia  
May 02, 2018 

Flawless combo, over the years I tried a lot for gear always looking for the holy grail, many times close but always with a BUT until now. The Cube 90 with the Fringe 5.0 are perfect to each other, they feel like mind surfing they are never in my way. Loose, fast, easy...large surf, small.
Havent tried the new models, but if they improved this one I want it!

Jeff, USA  
Aug 31, 2017 

I have been riding the 2018 Cube Quad for about a month now in mostly side-onshore waves and I love it. It is becoming my one-board quiver. It is super quick to plane and accelerate, and very smooth in chop. I feel like I am carrying much more speed off the bottom and into the lip and getting more pop on aerials. It is super stable and easy to ride, and it is crazy short. Great at controlled releases off of the top, so I have no excuse not to learn to Taka. So far I have sailed it with 5.3, 5.0, and 4.7 and all of these feel like they hit the sweet spot.

It seems to jump higher than my longer boards, as it fits tightly into the curve of the wave and really rockets straight up! I have been searching for the ideal side-on board for a while and now I have found it.

Tor Jenssen, Norway  
Nov 15, 2016 

Stepping in succession of the Tempo 92, Quad 110, Cube 90 and Tetra 109 anticipation was high when I finally got to try out the 95 cube in proper Euro waves. In cross on conditions the day started with drift out on a 5.2 in 1-2m Euro sized waves. Super easy to get out. Pops whitewater like a dream even with my 90kg. Points high to reach the lineup in no time. Easy to pick and catch waves on the way in and link turns and transitions on the waveface like nothing I've experienced before - even underpowered. As the wind picked up I had to change down from an overpowered 5.2, went through the full range of my 4.6 before ending the day on a 4.2 fully powered up. The 95 Cube felt at ease as the wind increased and waves moved into the 2-4m Euro size - never feeling to big. With plenty of power in the the rig and long waves linking turns and tearing the wave apart both frontside and backside was effortless. It was even possible to connect rides from the outside pier all the way into the sandy beach launch spot. Never done that before and it was only made possible by the ability of the Cube to keep speed through both narrow and drawn out frontside bottom turns and not loosing grip in long backside BTs setting up height for another set of frontside turns. The tail slides out on demand adding tons of fun and a surfy' feel, but never felt unsecure going vertical or for big snaps. Stepped of the water that evening with a renewed feeling of joy from wavesailing - owing it all to the new board ... The short of it is that the Tempo, Quads and Tetra are now out the door (despite being awesome) - and the Cube 95 will be my go to board for most conditions the coming winter season. Absolutely awesome! Period. Can't wait to let it rip sideshore or cross off conditions!

Rob, Ireland  
Aug 16, 2016 

Hi, I'm an intermediate standard sailor, decided to upgrade my 2013 Quatro 98l quad to the 2016 105l. So far I've sailed it in all conditions from inland bump and jump to west coast cross off wave riding.
I have been well impressed with the boards handling generally . Handles chop well, planes early and accelerates to full speed quickly giving me confidence when launching in difficult conditions . While on paper 105 is a lot of volume, the overall impression is that I'm on a 95 l board, however the 105 litres is useful in gusty conditions as the board keeps planing well. We've been getting a lot of difficult days lately and I have to say this size of board makes light work of launching into waves when the wind is light.
Jumping is a lot of fun , but its on the wave face where this board really comes into its own. Grips really well and carries speed vertically up the wave face to really setup sick top turns. I loved my old 98 quad but already I feel this is a much more exciting wave board. Would I recommend, well I've just ordered the 85l version for the bigger windier days. Roll on the Autumn storms at Maheroraty .
Cu there Rob

Rob, Australia  
Jul 18, 2016 

Hi , thought I'd share my early view on the 2016 Quatro cube 105l. I bought this to replace my 2013 Quatro 98l as I felt I needed a bigger spread of volume between my new high wind wave board . Let me start with my old 98, I sailed it in all conditions from 4.2 -6.2 sail, onshore , cross and classic down the line . It's a board I'd really grown to love the more I sailed it, so it was a difficult decision to up grade as I couldn't really fault it. I've only sailed the 105 3 times, Irish summer wind letting me down, however nailed both down the line and cross on mushy conditions. The first thing I noticed is because of the volume distribution it likes getting your feet back quickly when starting to plane. It does plane very quickly, acceraltion to top speed is very impressive meaning on launching in waves hitting jumping ramps is easy and fun. It pops over white water extremely easily, taking some of the worry out of launching into waves in marginal conditions. At 105 litres , me being 90 kg it means more waves days are accessible , always a good thing. It does not feel big however, at 62cm wide its slight narrower than my old 98 and i feel it's slightly more comfortable carrying speed in chop. In the air its compact shape means it feels like a much smaller volumes board, I'm looking forward to trying some big air . Ive sailed it down the line in half mast conditions on a 5.3 sail. First impressions really impressed me. It grips and turns at speed on the bottom turn and is awesome off the lip . I imagine I'll find it much easier to get air off the lip as this board gives the rider a lot of confidence with its its ease of sailing combined with radical performance. First impressions I would say it's an improvement on the 98 it replaced. It's fun , easy, and radical all at the same time congrats to Quatro rob

Jan, Poland  
Nov 24, 2015 

After two months spent on the new Cube in various conditions from waist to mast high with sails ranging from 3.7 up to 5.3 I can say that this biard is AWESOME. Pure magic. Realy quick on plaining, turns like crazy, stock MFC RTM fins are great.

Very comfy board that is very quick and is as fun on mast high waves as it is with fins forward on a waist high day!

In 85 litres it doesn't feel too big (when riding) even with 3.7 and considering its 58cm width this is quite an achievment!
One of the best things about this board os that when the waves are not really powerful or clean, it still goes quick and stable in bottom turn.

Thanks Keith and all of the team for bringing such an amazing product!!!

4.9 5.0 7 7 I have been always a Quatro addicted wave rider in the last years and I have owned several Quatro boards. My preference for wave riding goes always to quad Cube boards (my usual co Cube

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