JOOLA Dynaryz ZGR vs Yasaka Rakza 7: Which Should You Buy?

UltraSpin comparison · 2026-06-10 · rubber

JOOLA Dynaryz ZGRYasaka Rakza 7
Our rating8.3/108.6/10
best_sideforehandboth
controlMedium-Highhigh
speedExtremeoffensive
spinExtremehigh
sponge_hardness57.5 degrees Shore C (hard)45–47°
typehybrid tacky tensor (pimples-in)tensor inverted
weight_uncut_gapprox 56g (cut to 157x150mm)70

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ZGR (8.3) and Yasaka Rakza 7 (8.6) are both advanced tensors with excellent ratings, but Rakza 7 is slightly higher-rated and emphasizes value and consistency. ZGR is hard (57.5 degrees), German tacky-tensor hybrid, extreme spin and control, premium-priced, forehand specialist. Rakza 7 is medium-hard (45–47 degrees), natural-rubber topsheet, huge grip and spin near Tenergy 05 level, excellent value, versatile on both wings, offered in multiple thicknesses. Rakza 7 is more durable and cost-effective; ZGR is more extreme and specialized. Rakza 7 is one of the most recommended backhand rubbers at club level; ZGR is forehand-only. Pick ZGR if you are advanced forehand specialist wanting maximum spin and control; pick Rakza 7 if you want near-Tenergy spin at better value with either-wing versatility and excellent durability.

FAQ

Why is Rakza 7 rated higher if ZGR is more extreme?

Rakza 7’s combination of spin, value, durability, and all-court versatility earns it 8.6 vs. ZGR’s 8.3 specialist rating. Rakza 7 excels overall; ZGR excels in spin but is specialized and hard.

Which is better for both wings?

Rakza 7 is proven on both wings and one of the most recommended backhand rubbers at club level. ZGR is forehand-only. Rakza 7 is the all-court choice.

How much more affordable is Rakza 7?

Rakza 7 is excellent value with near-Tenergy spin at lower price. ZGR is premium German specialty. Rakza 7 is significantly cheaper.

Which lasts longer?

Yasaka Rakza 7 is excellent value and durable. ZGR’s tacky feel fades after two months. Rakza 7 is far more durable and cost-effective long-term.