Product Description
Introducing the new ASTROX 77 racquet with Rotational Generator System. The counter balanced head adapts to each shot, helping you to control the drive and attack the opposition with increased acceleration, steeper angle and power on the smash.
- Smash power up 7.1% (The difference between the initial speed and the final speed is minimized in order to be launched strongly)
- Smash angle is 2.3° steeper
Tested by Yonex (Measurements by swing robot)
Designed for intermediate to advanced players, Yonex adopts the new dimension graphite material 'Namd' making an improvement by enabling more powerful shots. This design allocates weight to the upper part of the frame, the joint part, and the end of the grip, resulting in less momentum lost and preparation for the next shot is rapidly made.
Product Specification
| Flex | Medium |
| Frame | H.M. GRAPHITE / NANOMETRIC / Tungsten |
| Shaft | H.M. GRAPHITE / Namd |
| Weight | 4U (80-85g) |
| Stringing Advice | 4U 20-28 lbs |
| Colour | Shine Yellow, Metallic Blue |
| Badminton Racket Type | Unstrung |
Product Technologies
| Rotational Generator System |
| NEW Grommet Pattern |
| Super Slim Long Shaft |
| ISOMETRIC |
| Namd |
| NANOMETRIC |
| SOLID FEEL CORE |
| New Built-in T-Joint |
| New Control Support Cap |
| AERO+BOX Frame |
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
| Type | 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 |
Number (CONVENTIONAL GRAPHITE = 100)
Researched by YONEX R&D Team
Rotational Generator System
Weight Distribution 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.
New Grommet Pattern
The single-pass grommet hole construction provides more grommet holes for a more high-performance stringing pattern.
Super Slim Long Shaft
The slimmest racquet ever produced by YONEX vastly reduces air resistance whilst providing maximum feel.
ISOMETRIC
The square-shaped ISOMETRIC frame shape is designed to keep vertical strings at a similar length, as well as the horizontal strings to produce an expanded sweet spot in all directions.
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.
SOLID FEEL CORE
The built-in solid feel core cuts harmful miscellaneous vibration at impact. Solid feel core is carried in all racquets manufactured in Japan.
NEW Built-in T-Joint
‘NEW’ Built-in T-Joint is manufactured from a special lightweight plastic combined with epoxy resin and foaming agent that enhances quality and performance by increasing the stability of the shuttle on the string bed and through the air.
New Control Support Cap
YONEX has designed a new octahedron shaped control support cap that reduces air resistance whilst encouraging nimble handling.AERO+BOX Frame
Aero+Box Frame
Combines solid hitting feel and quick swing
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