Yonex BG-AS Aerosonic Badminton String

The Yonex BG-AS Aerosonic holds a distinct crown in the badminton universe: it is Yonex’s thinnest badminton string ever made.

Aerosonic is entirely engineered around the physics of speed, minimal wind resistance, and a sensory experience. It sits at the extreme performance end of the spectrum, trading away structural thickness to give technical players a level of instantaneous repulsion and high-pitched acoustic sound that thicker gauge strings simply cannot replicate.

Core Construction & Technology

To build a string this thin that doesn't immediately snap under standard playing tension, Yonex had to reinvent its braiding approach:

1. Ultra-Thin 0.61 mm Gauge: The defining headline feature. This incredibly slender profile allows the racket to slice through the air with absolute minimal drag, maximizing raw swing velocity.
2. Compact Filament Construction: The core consists of ultra-fine, high-intensity nylon multifilament strands packed densely together.
3. High-Polymer Braided Nylon Outer: The outer layer wraps tightly around the compact core. This specialized dense braiding ensures that despite its microscopic 0.61mm thickness, the string maintains enough structural integrity to hold high tension.

Playing Characteristics

1. Effortless Repulsion (10/10): The snapback speed of Aerosonic is legendary. Because the string is so thin, its elastic deformation and recovery are nearly instantaneous. You do not need a massive, swinging arm movement to generate power; defensive flicks from the back court or quick midcourt drive adjustments launch the shuttle across the net with minimum physical effort.
2. The Ultimate Hitting Sound (10/10): Aerosonic produces the highest-pitched, sharpest, and most violent acoustic "crack" in badminton. If you love a loud, intimidating sound that echoes through the hall on a clean sweet-spot hit, nothing beats this.
3. Net Precision & Feel (9.5/10): The tactile feedback is highly transparent. Because there is so little material mass between your racket frame and the shuttle, you can feel the exact weight and angle of the shuttlecock during delicate net tumbles and tight slices.
4. Durability (3/10): This is the heavy, undeniable trade-off. At 0.61mm, Aerosonic is fragile. It is highly sensitive to off-center mis-hits near the top of the frame, which can cause instantaneous snapping. Heavy smashers or players still mastering their sweet-spot accuracy will find themselves breaking this string very frequently.
5. Tension Retention (6/10): Because the core filaments are so fine, they stretch out and settle relatively quickly. It tends to lose its peak crispness faster than a Vectran-wrapped string (like BG80) or a thicker utility string.

Who is it for?

1. Defensive & Front-Court Doubles Specialists: Players who rely on lightning-fast reaction times, intercepting shots at the net, and driving flat exchanges rather than brute-force baseline smashing.
2. Players Lacking Raw Forearm Strength: Excellent for those who want effortless baseline-to-baseline depth without straining their wrist or elbow, as the string bed does the mechanical spring-work for you.
3. Elite Technique Players: Those with incredibly accurate, clean hitting mechanics who rarely mis-hit the shuttle near the frame and don't mind the cost of re-stringing more often for elite performance.

Specifications

• Color: White.
• Gauge / Thickness: 0.61 mm (22 Gauge).
• Length: 10/200m (33/656 ft).
• Material Core: High-Intensity Nylon Multifilament.
• Outer Coating: High Polymer Braided Nylon Fiber.
• Feel: Medium Feeling (Crisp, highly reactive bounce).
• Main Characteristic: Ultimate Repulsion Power & High-Pitched Sound.
• Country of Origin: Japan.