JOOLA Dynaryz ZGR vs Nittaku Fastarc S-1: Which Should You Buy?

UltraSpin comparison · 2026-06-12 · rubber

JOOLA Dynaryz ZGRNittaku Fastarc S-1
Our rating8.3/107.9/10
best_sideforehandforehand or backhand
controlMedium-High70
speedExtreme97
spinExtreme96
sponge_hardness57.5 degrees Shore C (hard)35 degrees
typehybrid tacky tensor (pimples-in)inverted
weight_uncut_gapprox 56g (cut to 157x150mm)around 41-43g

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JOOLA Dynaryz ZGR delivers exceptional spin through tacky-tensor hybrid design with unique blend of grip and catapult, allowing multiple gears for touch play and power shots at mid to long distance. Hard 57.5-degree Shore C sponge demands high racket speed and precise technique, and heavy 56-gram cut causes arm fatigue over extended play. Coming from Chinese-style rubbers background, ZGR uniquely combines catapult with exceptional spin for advanced forehand attackers and power loopers at mid to long distance.

Nittaku Fastarc S-1 delivers genuine tensor speed in dramatically lightweight package—typically under 43 grams uncut—making it accessible for intermediate players transitioning from beginner rubbers. Grippy non-tacky topsheet and medium-high throw angle aid loop clearance and blocking, with excellent serve-return stability reducing adjustment period. Spin output noticeably lower than Fastarc G-1 and top rivals, limiting appeal for spin-dependent players. ZGR prioritizes extreme spin and tacky feel; Fastarc S-1 prioritizes lightweight accessibility.

FAQ

Which generates more spin?

ZGR extreme spin through hybrid tacky-tensor design. Fastarc S-1 lower spin, prioritizing speed.

Which is lighter?

Fastarc S-1 dramatically lighter at under 43 grams. ZGR at 56 grams cut noticeably heavier.

Which suits intermediate players?

Fastarc S-1 accessible for intermediates. ZGR demands advanced technique and high racket speed.

Which suits all-round play?

Fastarc S-1 works forehand and backhand. ZGR forehand-focused for power loopers.