Yonex Astrox 55 Badminton Racket


Weight-grip-size: 5UG5
Sale price$250.00



Yonex is pleased to announce the worldwide release of the latest racquet in the ASTROX series, which is quickly gaining a strong following among the world’s top players, including Akane Yamaguchi. The ASTROX 55, specifically designed for intermediate players.

Amongst intermediate players, particularly those aged 13-18 years old, the most commonly heard feedback is that they’d like to improve their smash. To this end, Yonex has developed a racquet that allows them to maximize their power and increase smash speed. By combining the Rotational Generator System, a technology shared by all racquets in the ASTROX line, with an overall reduction in weight*, to perfectly match the swing speeds of intermediate players, the ASTROX 55 increases maneuverability during power shots, such as smashes, ultimately increasing smash speed. Additionally, the shaft employs the next-generation graphite material Namd*, which helps it to quickly flex and return to normal, further increasing smash speeds.

The ASTROX 55 is designed to support the growth of today’s young and intermediate badminton players into tomorrow’s “future aces.”

*ASTROX 55 average weight: 5U/78g; other ASTOX series racquets: 3U/88g or 4U/83g

**Namd is a technology developed by Nitta Corporation to "uniformly disperse carbon nanotubes into carbon fiber composites."

Item Code: AX55

Frame: H.M. Graphite/Tungsten

Shaft: H.M. Graphite/Namd
Weight / Grip Size: 5U (Ave.78g) G5
Colour: Light Silver
Made in Japan


Rotational Generator System:

By applying the counterbalance theory, weight is distributed throughout the grip end, frame top and the joint for maximum control. The transition to the next shot can be performed smoothly with a rapid succession.

NANOMETRIC* improves the bonding strength between the carbon fibres enabling us to take racquet shaft construction to another level. By reducing the amount of carbon in the shaft to make it 60%* thinner than a conventional racquet whilst retaining stiffness, YONEX has created a revolutionary lightweight racquet with lightening head speed and control.

*NANOMETRIC is the new material which applies the NANOALLOYTM Technology of Toray Industries, Inc.

*approximate measurement when compared to a conventional racquet shaft, tested by YONEX 

Flexural Strength (Bending Strength) (%) Flexural Modules (Stiffness) Impact Strength (Resisting External Shock)
Conventional Graphite 100 100 100
NANOMETRIC 108 98 140
NANOPREME 108 109 124


Researched by YONEX R&D Team

“TOUGH G FIBER” is a mixture of Carbon Nanotube and Glass Fiber which has approximately 3 times the elasticity of conventional material. This new technology is utilized in the frame of “ASTROX 66” to enhance flexibility and maximize repulsion power which provides a soft shot feeling and increases the flight distance of the shuttle. This badminton racquet delivers the shuttle to the back of the court creating further advantage in the game.


New dimension graphite Namd

A world-first, new dimension graphite material, Namd, greatly improves the adhesion of the graphite fibers and resin by attaching nanomaterial directly to the graphite fiber.

In high performance racquets, it is common to combine nanomaterials with resin that connects graphite fibers, but in Namd, nanomaterials are directly adhered to the graphite fibers and resin is greatly increased. This major improvement produces a shaft that flexes and stores energy, delivering explosive force on impact with the shuttle.

Rotational Generator System

By applying the counterbalance theory, weight is distributed throughout the grip end, frame top and the joint for maximum control. The transition to the next shot can be performed smoothly and in rapid succession.


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