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ARAI Foams
The armrest to unlock up to 20Watts without training
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.
Relentless 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
Feel your improvement
Masamune has been specifically designed for Ironman triathletes where drag coefficient, ergonomics and stability have brought up to the max .
Refined aerodynamics
As tested in wind tunnel in Japan, the only fact of changing your front cockpit to a Masamune will immediately save you 15 to 20 Watts.
Inclined & soft support
Increase your comfort by adding our patented K wedges to increase the angle from 10º to 15º or 20º, giving you the best position possible to achieve your goals.
Light as a feather
Monocoque construction made of 100% UD carbon fiber for greatest weight/strength ratio.
Full integration
Easy install of a bottle between your arms and a computer mount above your wrist with the Masamune accessories (Sold apart).