Yonex Astrox 100 ZZ Badminton Racket (Kurenai)

The Yonex Astrox 100 ZZ (Kurenai / Crimson Red) is Japan’s ultimate flagship power racket, famously endorsed by world champions like Viktor Axelsen. Built for unyielding offensive dominance, it features Yonex's thinnest shaft technology, an extra-stiff flex profile, and an ultra-dense solid core to maximize smash velocity and control on high-speed exchanges.

Performance Profile

1. Hyper Slim Solid Core Shaft: Features Yonex’s thinnest, solid-graphite core shaft, drastically reducing air resistance while eliminating hollow torque. This configuration delivers maximum kinetic energy transfer, resulting in heavy, explosive smashes.
2. Extreme Snapback & Flex: Constructed with Namd™ graphite throughout the frame and shaft. The material maintains flexibility during high swing speeds and snaps back instantly at contact, driving steep-angled attacking trajectories.
3. Enhanced Isometric Sweet Spot: Engineered with an expanded, square-shaped ISOMETRIC head profile (~2.9% larger hitting area than standard frames), providing extra forgiveness without sacrificing tight directional control.
4. Seamless Rotational Speed: Driven by an upgraded Rotational Generator System featuring Black Micro Core material at the top of the frame. The counterbalanced weight at the head tip, joint, and grip cap enables rapid recovery between consecutive heavy swings.
5. Energy Boost Cap Plus: A uniquely shaped end cap optimizes shaft flex while preventing side-to-side twisting, locking in stability on off-center defensive blocks and net drops.

Best Suited For

1. Advanced & Elite Singles Attackers: Competitive players who dominate rallies from the backcourt using steep jump smashes, baseline-to-baseline depth, and pinpoint power.
2. Power-Dominant Doubles Rear-Court Players: Players whose primary role is to punish high lifts from the backline and keep continuous offensive pressure.
3. Athletes with Advanced Wrist Mechanics: Designed strictly for experienced players capable of fully flexing an Extra Stiff shaft to unleash its energy transfer without causing arm strain.

Specifications

• Model: Astrox 100 ZZ (AX100ZZ-Kurenai).
• Colorway: Kurenai (Crimson Red / Black).
• Flex: Extra Stiff.
• Balance Point: Head-Heavy.
• Frame Material: HM Graphite, Namd, Tungsten, Black Micro Core, Nanometric.
• Shaft Material: HM Graphite, Namd.
• Joint: NEW Built-in T-Joint.
• Weight / Grip Sizes: 4U (Avg. 83g) G5, G6 / 3U (Avg. 88g) G4, G5, G6.
• Overall Length: 675 mm (10 mm longer).
• Recommended Tension: 4U: 20–28 lbs / 3U: 21–29 lbs.
• Manufacturing Origin: Japan.