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It all depends on how honestly you can answer this question: Who do you want to be?

Time to unlock your full potential

Helping athletes be their fastest version with our latest MASAMUNE

BUY NOW Check compatibility

what riders think

Very responsive

Very responsive, very available and product is amazing. Looking forward racing with my tetsuo cockpit

Bletterie Julien

Calidad y buen servicio

Desde el primer contacto han sido muy atentos y profesionales. Muy buenos consejos para ayudarme en la compra e instalacion.
La calidad de mis nuevos Kaizen estan fuera de toda duda y la comodidad se siente desde el primer kilometro.
Gracias de nuevo

Pascual Sanchez Garcia

Really high quality products

Really high quality products, love the brand!


Best customer service ever.

Best customer service ever.
Recommend I can as Yoda would say.

Paweł Zawadzki


Excelente!!! Es una maravilla poder escribirles por wasap o emial y que te contesten rapido. Aun es mas, compre unas cuñas de 10º y les pedi un cambio. A lo que no pusieron ninguna pega y me lo hicieron encantados. Un placer. Gracias!!

Pablo Gijon Iglesias

The armrest to unlock up to 20Watts without training

The ultimate weapon

Overcome your limits.

Achieve your goals.

Reduce your DRAG

Be more for less, increase your performance from minute 1.

Perfect fit

Fine-tune your position so you can stay aero longer.

Improve your comfort

Become one with your bike. Most ergonomic armrest in the market.

Full focus

Accessories perfectly integrated so you can focus on pedaling.

Buy now

Gorō Nyūdō Masamune

五郎入道正宗 1264 - 1343

Japan's legendary katana forger etched his name in history for the greatness of his swords.

Each of his creations is a testament to his unparalleled craftsmanship, combining an extraordinary edge with an artistic grace that elevates his swords to the status of timeless masterpieces.

Masamune's legacy lives on as a shining example of swordsmanship excellence.

Be faster with less effort

Unforging Masamune

1. Handgrip

Adjustable wrist angle monogrip

2. Computer mount

Mount your Garmin/Wahoo computer above your wrist

3. Bottle adapter

Mount for an easy acces of a bottle

4. Foam

Removable with Hook and Loop

5. Body

100% Monoblock UD carbon fibre with built in wire track

6. Adjustable

Center-to-center opening of 140mm. Mounting from 100mm to 160mm without a plate.

7. K Wedges

Choose from 10 to 15 to 20 degrees, made of aluminum

8. Plate

Making all bikes compatible, made of aluminum



Are your armrests compatible with my bike?

One of the things we are really focus at is in compatibility as we look to help improving the comfort and position of as many athletes as possible.
That's why we show a technical drawing on ech product so you can check all the measurements before buying.


  • As they can directly replace your current armrests, we have design the holes pottern to be as compatible as possible. Please refer to the drawing at the product page


  • Very hard to tell


Can you manufacture a custom plate to adapt your armrests to my bike?

Yes! If you need a dedicated plate or custom alloy piece that you want to manufacture we can make it happen!

Just drop as an email at with your requirements with some pictures or drawing that might help

Can I return your product if it does not fits me or my bike?

Of course! You have 14 days for free returns no questions asked!

Please, refer to the 'Deliveries and returns' page at the bottom of the website

Where are your products manufactured?

We are based in Spain so we try to manufacture everything here.

At the moment all carbon fiber parts are being manufacture in Spain and all the alloy piece in Germany

Do you offer bulk sales?

Yes we do!

Please drop as an email with your exact quantity to know bulk discount.

Can I get a discount?


We have many querys regarding discount, but as we a really focus on quality there is no marging gap to do so.

However we do offer disocunt on a very selective days of the yer.

Stay tunned to know!

Can I become your dealer?

Of course!

As a dealer you will benefit from discount, visibility and direct contact with us for manufacturing specific parts for you.

Become a dealer if you run a biomechanical center.

Drop us an email at to know more

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