1. Product Overview
This manual provides essential information for the proper use and maintenance of your Yonex Astrox Attack 9 Graphite Badminton Racquet. Designed for intermediate players, this racquet features a graphite construction for durability and performance.

Image 1.1: Front view of the Yonex Astrox Attack 9 Graphite Badminton Racquet.
Key Features:
- Built-in T-Joint: Creates a durable and high-strength one-piece frame that is torque-free.
- Isometric Head Shape: Enlarges the sweet spot for more consistent accuracy, even on off-center hits.
- High Durability: Constructed for extended product life under regular use.
- Solid Frame: Combines a solid hitting feel with a quick swing response.
- Slim Shaft: Extra slim shaft facilitates maximum power transmission for effective rebound balance and anti-torsion.
- Rotational Generator System: Counterbalanced weight distribution for maximum control and smooth transitions between shots.
2. Setup
The Yonex Astrox Attack 9 racquet is delivered pre-strung and ready for immediate use. No complex assembly is required.
Initial Inspection:
- Unpacking: Carefully remove the racquet from its packaging and included full cover.
- String Tension: Verify that the strings are intact and have appropriate tension. The recommended maximum tension for this racquet is 32 lbs.
- Grip Check: Ensure the factory grip is securely wrapped. You may choose to apply an overgrip for personalized comfort and sweat absorption.
- Frame Integrity: Inspect the frame for any visible damage or cracks that may have occurred during transit.

Image 2.1: Illustration of the maximum recommended string tension for the racquet.
3. Usage Guidelines
The Astrox Attack 9 is designed for intermediate players seeking a balance of power and control. Its lightweight nature (80 grams) and head-heavy balance contribute to powerful smashes and quick maneuverability.
Playing Recommendations:
- Grip: Hold the racquet firmly but not too tightly. A relaxed grip allows for better wrist movement and power generation.
- Swing: Utilize the slim shaft and solid frame for quick swings and effective power transmission.
- Sweet Spot: The isometric head shape provides an expanded sweet spot, offering forgiveness on slightly off-center shots. Aim to hit the shuttlecock within this area for optimal performance.
- Rotational Generator System: Leverage the balanced weight distribution for smooth transitions between offensive and defensive shots.

Image 3.1: Diagram illustrating the Isometric head shape and sweet spot expansion.

Image 3.2: Visual representation of the racquet's lightweight design (80 grams).
4. Maintenance
Proper maintenance ensures the longevity and performance of your Yonex Astrox Attack 9 racquet.
Care Instructions:
- Cleaning: Wipe the frame and strings with a soft, dry cloth after each use to remove sweat and dirt. Avoid using harsh chemicals.
- Storage: Store the racquet in its full cover in a cool, dry place, away from direct sunlight and extreme temperatures. This prevents frame warping and string degradation.
- String Care: Avoid hitting the racquet against hard surfaces, as this can damage the strings and frame. If strings break or lose tension significantly, consider professional restringing within the recommended tension range (up to 32 lbs).
- Grip Replacement: Replace the grip or overgrip regularly to maintain optimal feel and prevent slippage due to wear or sweat accumulation.

Image 4.1: Depiction of the solid frame construction contributing to high durability.

Image 4.2: Close-up of the built-in T-Joint, highlighting its durable, torque-free design.

Image 4.3: Detail of the slim shaft, designed for efficient power transmission.
5. Troubleshooting
This section addresses common issues you might encounter with your badminton racquet.
Common Issues and Solutions:
- Issue: String Breakage.
Solution: String breakage can occur due to impact, wear, or exceeding recommended tension. Inspect for sharp edges on grommets. If frequent, consider professional restringing with durable strings or slightly lower tension. - Issue: Loss of String Tension.
Solution: Strings naturally lose tension over time. If performance degrades, professional restringing is recommended. Ensure restringing is done within the 32 lbs maximum tension. - Issue: Grip Slippage.
Solution: The grip may become slippery due to sweat or wear. Replace the overgrip regularly or apply a new base grip for improved traction. - Issue: Frame Damage (Cracks/Dents).
Solution: Frame damage typically results from impact with hard surfaces or other racquets. Minor cosmetic damage may not affect play, but significant cracks can compromise structural integrity and performance. Professional assessment is recommended for severe damage.
6. Specifications
| Feature | Detail |
|---|---|
| Brand | YONEX |
| Model | Astrox Attack 9 |
| Material | Graphite (Frame & Shaft) |
| Item Weight | 80 Grams |
| Grip Size | 4 1/2 inches |
| Product Dimensions | 100L x 10W Centimeters |
| Colour | Black |
| Sport Racket String Installation | Strung |
| Maximum String Tension | 32 lbs |
| Skill Level | Intermediate |
| Included Components | Full Cover |
| Country of Origin | India |
7. Warranty Information
Yonex products are manufactured to high-quality standards. Specific warranty terms and conditions may vary by region and retailer. Please retain your proof of purchase for any warranty claims.
For detailed warranty information, it is recommended to:
- Refer to the warranty card included with your product, if applicable.
- Contact the authorized Yonex retailer from whom you purchased the racquet.
- Visit the official Yonex website for general warranty policies.
8. Customer Support
Should you require further assistance, have questions about your Yonex Astrox Attack 9 racquet, or need to report an issue, please contact customer support.
Contacting Support:
- Retailer Support: Your point of purchase (retailer) is often the first and best resource for product-specific inquiries and support.
- Yonex Official Website: Visit the official Yonex website for contact information, FAQs, and product resources.





