JOOLA Dynaryz ZGR vs Yasaka Rakza Z: Which Should You Buy?

UltraSpin comparison · 2026-06-10 · rubber

JOOLA Dynaryz ZGRYasaka Rakza Z
Our rating8.3/108.6/10
best_sideforehandforehand
controlMedium-Highhigh
speedExtrememedium
spinExtremeextreme
sponge_hardness57.5 degrees Shore C (hard)50 degrees (medium-hard; Extra Hard version around 57 degrees)
typehybrid tacky tensor (pimples-in)hybrid tacky tensor
weight_uncut_gapprox 56g (cut to 157x150mm)72

We may earn a commission from links on this page. Learn more.

ZGR (8.3) and Yasaka Rakza Z (8.6) are both hard hybrid tensors emphasizing extreme spin, but Rakza Z is rated higher and offers unique Japanese tacky-hybrid character. ZGR is German (57.5 degrees), tacky-tensor hybrid with multiple gears, control-focused with spin emphasis. Rakza Z is Japanese (50 degrees), tacky hybrid, exceptional low-slip spin on loops and backspin, heavy at 72 grams, strong linear kick on full strokes, excellent durability. Rakza Z is rated higher (8.6 vs. 8.3) and more durable. ZGR is more versatile and demanding of committed full strokes; Rakza Z is spin-specialist heavy hitter. Rakza Z is 72 grams vs. ZGR’s approximately 56 grams—significant weight difference. Pick ZGR if you want multi-gear hybrid with maximum control and spin; pick Rakza Z if you want extreme spin specialist willing to accept heavy weight and full-swing requirement.

FAQ

Which is better for full-power topspin loops?

Yasaka Rakza Z delivers exceptional low-slip spin with strong linear kick on full strokes, purpose-built for powerful topspin. ZGR is also spinny but more versatile. Rakza Z is the power-loop specialist.

How much heavier is Rakza Z?

Rakza Z is 72 grams; ZGR is approximately 56 grams cut—16-gram difference. Rakza Z can cause arm and wrist fatigue, especially on carbon blades. ZGR is significantly lighter.

Which is better for defensive play?

ZGR offers better passive control and defensive options with multiple gears. Rakza Z is weak at less-than-full-power and weak at flat hitting and chopping. ZGR is better for mixed offense-defense.

Which is more durable?

Yasaka Rakza Z has excellent durability and great value. ZGR’s tacky feel fades after two months. Rakza Z is far more durable.