Yonex Astrox 100 ZZ Kurenai, Dark Navy

The Yonex Astrox 100 ZZ is built for one thing: domination from the back court. Engineered for advanced players who live for the smash, this racket delivers explosive power, lightning-fast recovery, and the kind of precision that wins rallies when it matters most.

• Rotational Generator System — Counter-balanced weighting shifts seamlessly between offense and defense, so you can punish from the back and recover in a flash.
• Namd™ Graphite Shaft — Yonex's elastic carbon technology flexes deeper on impact and snaps back faster, translating directly into sharper, heavier smashes.
• Energy Boost Cap PLUS — Aerodynamically shaped to maximize shaft flex and channel every ounce of swing energy into the shuttle.
• Black Micro Core — A dense, stiff vibration-damping material in the upper frame, used here for the first time in a Yonex badminton racket. Yonex states it adds 4% rigidity and 2% vibration absorption.
• Head Heavy Balance — Extra momentum at the frame means more power behind every overhead.
• Hyper Slim Shaft — Yonex fills a traditionally hollow shaft with graphite in the core and states an 11.8% reduction in air resistance, so a head-heavy frame still feels quick through the air.
• Made in Japan — the flagship-tier build, separate from the Taiwan-made Tour and Game models in the same family.

Specifications

• Weight: 3U (avg. 88 g) / 4U (avg. 83 g)
• Flex: Extra Stiff
• Balance: Head Heavy
• Length: 10 mm longer
• String pattern: 22 × 21
• Stringing advice: 4U 20–28 lbs · 3U 21–29 lbs
• Grip: Sold as 3UG5 and 4UG5 in most markets; some Canadian stock arrives as 3UG4
• Colourway: Kurenai is the current colour. Dark Navy was the 2020 launch colour and is discontinued — same racket, same specs, so buy either on price.

This is a demanding racket, not an easy power boost. The extra-stiff shaft rewards clean timing and gives very little back to a late or slow swing. If you are a backcourt specialist who can already create racket-head speed, it is one of the best smashing frames made. If your contact point is often late, look at the Astrox 88D Pro instead.

Free shipping across Canada on orders over $200 CAD.