JOOLA Dynaryz ZGR vs Loki RXTON 1: Which Should You Buy?

UltraSpin comparison · 2026-06-10 · rubber

JOOLA Dynaryz ZGRLoki RXTON 1
Our rating8.3/108.0/10
best_sideforehandboth
controlMedium-Highvery high
speedExtremelow to medium
spinExtremehigh
sponge_hardness57.5 degrees Shore C (hard)medium (around 38-39 degrees Chinese scale, roughly 50-52 ESN)
typehybrid tacky tensor (pimples-in)tacky inverted (budget)
weight_uncut_gapprox 56g (cut to 157x150mm)64

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These rubbers serve entirely different player segments with no overlap. ZGR is a hard (57.5-degree) tacky-tensor hybrid for advanced forehand attackers who loop at mid-to-long distance and demand extreme spin and control combined with 8.3 rating. It costs premium prices and demands equally premium technique and arm strength. RXTON 1 is a budget entry rubber around 15 dollars, very light and soft, with excellent control and good spin for beginners and club players. ZGR is a power rubber with multiple gears for committed swings; RXTON 1 is forgiving, easy to hit, and hard to miss. Pick ZGR if you are an advanced player coming from pure Chinese tacky rubbers but want tensor catapult; pick RXTON 1 if you are building your first custom racket on a budget and want a reliable, replaceable rubber.

FAQ

What is the price difference?

RXTON 1 costs around 15 dollars per sheet; ZGR is a premium flagship rubber at roughly 60+ dollars. RXTON 1 is cheap enough to replace monthly without worry, while ZGR is a long-term investment.

Which is lighter to play with?

RXTON 1 is remarkably light across all colours, around 64 grams uncut. ZGR at approximately 56 grams cut is lighter in absolute weight but feels heavy due to sponge hardness and demanding technique. RXTON 1 is easier on the arm overall.

Can a beginner use either rubber?

RXTON 1 is ideal for beginners—very high control, good spin, and forgiving on mishits. ZGR is too hard and unforgiving; even intermediate players below 1600 rating will struggle and likely produce unforced errors.

Which is better for spin and serves?

ZGR excels at extreme spin on loops and counter-loops with its tacky-tensor hybrid character. RXTON 1 has good usable spin and reasonable serve spin but does not approach ZGR’s spin output or topspin consistency.