Stiga Mantra M vs Yasaka Rakza Z: Which Should You Buy?

UltraSpin comparison · 2026-06-10 · rubber

Stiga Mantra MYasaka Rakza Z
Our rating8.2/108.6/10
best_sideBackhand or Forehandforehand
controlHighhigh
speedHighmedium
spinHighextreme
sponge_hardnessMedium (approx 45 degrees)50 degrees (medium-hard; Extra Hard version around 57 degrees)
typeInverted / Pimples-inhybrid tacky tensor
weight_uncut_gapprox 6472

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Rakza Z is a tacky hybrid emphasizing extreme spin and control over speed; Mantra M is a speed-friendly tensor. Rakza Z excels at heavy loops, backspin opening and full-power strokes with exceptional grip and durability, but is slow and weak at less-than-full power or off-position play. Mantra M is faster, more versatile and suitable across all distance ranges. Rakza Z is heavier and tiring on the arm. Choose Rakza Z if you loop-dominant and want heavy spin; choose Mantra M for all-around versatility.

FAQ

Why is Rakza Z so heavy?

At 72 grams uncut, it is a premium tacky rubber. The weight contributes to arm fatigue, especially on carbon blades.

Is Rakza Z good for flat hitting?

Weak to mediocre. It is optimized for full-power committed strokes, not light flat hits or touch play.

Who should pick Rakza Z?

Proactive offensive players, especially forehand loopers, who want to pressure opponents with heavy spin and are happy to swing fully at all times.