Yonex Astrox Lite 37i Badminton Racquet | 78g | Head Heavy | Hi-Flex | 5U G4

Yonex Astrox Lite 37i

The Yonex Astrox Lite 37i is a premium Japanese-engineered badminton racquet crafted for players who refuse to compromise between speed and power. Part of the prestigious Astrox iSeries, this racquet features a 5U ultra-lightweight build (78g) combined with a head-heavy balance — giving you the agility needed for rapid defensive blocks and the momentum required for steep, aggressive smashes.

Built with High-Modulus Graphite frame and shaft enhanced by Nanomesh Neo technology, the Astrox Lite 37i is a powerhouse that can withstand string tensions up to 30 lbs, providing the crisp feel and control typically reserved for professional-grade gear. The Hi-Flex shaft ensures a quicker take-back and more fluid swing — so intermediate players can generate explosive power without requiring aggressive wrist technique.

Whether you're dominating the back court with steep smashes, driving hard from mid-court, or transitioning rapidly to defensive blocks at the net, the Astrox Lite 37i keeps up with every intention. Its head-heavy balance point (310mm) amplifies smash power and steep angles, while the Aero+Box Frame slashes through air resistance to accelerate head speed on every stroke.

Strung and ready to play, this racquet is the ideal upgrade for any intermediate player serious about adding explosive power to their attacking game — without sacrificing the speed and manoeuvrability they rely on.

Technical Specifications

• Brand: Yonex (Japan)
• Model: Astrox Lite 37i (AS-L37i)
• Weight Class: 5U (75–79g, Avg. 78g)
• Grip Size: G4
• Shaft Flexibility: Hi-Flex
• Balance: Head Heavy (310mm)
• Frame Material: H.M. Graphite
• Shaft Material: H.M. Graphite
• String Tension Range: 20–30 lbs
• Colour: Black / Purple / Off-White
• Recommended Level: Beginner to Intermediate
• Playing Style: Attacking / All-Court

Key Features

• Nanomesh Neo Technology: Ensures a quicker shaft take-back and enhanced structural strength, allowing for a faster, more fluid swing — delivering a dynamic, responsive feel on every stroke.
• Head-Heavy Balance (310mm): Concentrates weight at the top of the frame to generate massive momentum for steep, aggressive smashes — giving you the power of a heavier racquet in an ultra-lightweight 78g frame.
• Hi-Flex Shaft for Maximum Whip: Bends and snaps back to generate natural repulsion power on every stroke — ideal for beginners and intermediate players who want explosive results without requiring aggressive wrist technique.
• Isometric™ Head Shape: Yonex’s signature square-shaped frame — developed over 30 years — increases the sweet spot by 7%, ensuring power and accuracy even on off-centre contact.
• Aero+Box Frame: Combines a solid hitting feel with a streamlined aerodynamic shape to slash through air resistance — accelerating head speed for faster, more deceptive shot delivery.
• Control Support Cap: Provides an 88% wider flat surface compared to ordinary rackets for easier gripping, faster follow-through, and more precise shot control.
• Built-in T-Joint: Increases strength between the frame and shaft, eliminating head twist for more accurate, stable shots — moulded deep into the graphite for long-term structural integrity.
• 30 lbs Max Tension: Withstands professional-grade string tension for crisp repulsion feel and pinpoint accuracy — customise your setup to match your playing style and court conditions.

Imagine stepping onto the court with a racquet that feels like pure intention — every smash landing with authority, every defensive block effortless, every rally played exactly on your terms. Speed and power, finally without compromise. That’s the Yonex Astrox Lite 37i experience.

Suitable for: Beginner to Intermediate Players | Singles & Doubles | Attacking & All-Court Style