Brand : Yonex

Model : Astrox 77

Colour : Shine Yellow

Balance : Head Heavy

Shaft Flex : Medium

Frame Material : HM Graphite / NANOMETRIC  / Tungsten

Shaft Material : HM Graphite / Namd

Joint : NEW Built-in T-Joint

Length : 10 mm longer

Weight/Grip : 4U (Avg. 83g) G5, 6 /  3U (Avg. 88g) G4, 5, 6

Stringing Advice : 4U: 20 - 28 lbs / 3U: 21 - 29 lbs

 Made In Japan

In a world’s first, Yonex has utilized top-class Namd graphite, creating the ASTROX 77 badminton racquet. Current top players in the world have many playing styles to maximize their chance to take points from their opponent. Smashes are utilized to break opponents with a hit that rapidly descends to the floor with power and accuracy. Combined with a fast play speed, smashes of varying angles and power help players rout their opposition. ASTROX 77 uses a world's-first, new dimension graphite material, Namd, which greatly improves the adhesive degree of carbon fiber and resin by attaching nanomaterial directly to carbon fiber. From the initial movement of the player to the impact, the new dimension graphite is difficult to harden, and the shaft extends and accumulates energy due to the speed of the fast swing. Since follow-through of the swing is smaller after direct impact with the shuttlecock, the swing speed drops and the new dimension graphite regains hardness and strengthens the resilience of the shaft, allowing the energy to explode rapidly before returning to its original state. In addition, we use the grip end, the frame top and the joint, to distribute weight throughout the racquet. The transition to the next shot can be performed smoothly with a rapid succession. The ASTROX 77 is an attack-orientated model which can lead a high-speed game with a design which can deliver powerful, steep smashes allowing for more chances with the shuttlecock. 

Features :

• New Revolutionary + New Structure/New Weight Distribution = Rotational Power - Rotational Generator System.

• Achieves Steeper Angle + Acceleration

Technology :

• Aero-Box Frame, Control Support Cap, Isometric, Namd, Nanometric, New Built In T-Joint, New Grommet Pattern, Rotational Generator System, Solid Feel Core, Super Slim Frame

• AERO+BOX FRAME - Combines solid hitting feel and quick swing.

• CONTROL SUPPORT CAP - YONEX has designed a new octahedron shaped control support cap that reduces air resistance whilst encouraging nimble handling.

• ISOMETRIC - Enlarged Sweet Spot

ISOMETRIC^TM technology continues to help the world’s greatest players achieve global success. Developed over 30 years ago, the ISOMETRIC^TM design increases the sweet spot by 7%*. Compared to a conventional round frame, a square-shaped ISOMETRIC^TM racquet generates a larger sweet spot by optimizing the intersection of the main and cross strings. ISOMETRIC^TM delivers greater control without sacrificing power. ISOMETRIC^TM is a Trademark of Yonex CO., LTD.
*Tested by Yonex

• NAMD - Revolutionary Graphite

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.
By utilizing high quality Namd graphite throughout the shaft and frame of both models more flex is produced with a faster snapback, unleashing dramatic steep power. The material stays flexible even with increased swing speed, bending when swing speed increases and restoring its original hard shape at the end of the swing. The ability to bend even further and snap back rapidly, produces stronger shots and greater smash speeds.

• NANOMETRIC - Lightweight

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 NANOALLOY^TM Technology of Toray Industries, Inc.

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

• 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 GROMMET PATTERN - High-Performance

The single-pass grommet hole construction provides more grommet holes for a more high-performance stringing pattern.

• 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.

• SOLID FEEL CORE - Cuts Vibration

The built-in solid feel core cuts harmful miscellaneous vibration at impact. Solid feel core is carried in all racquets manufactured in Japan.

• Super Slim Shaft - Reduced Air Resistance

The slimmest racquet ever produced by YONEX vastly reduces air resistance whilst providing maximum feel.