Butterfly Tenergy 05 Hard vs Yasaka Rakza 7 Soft: Which Should You Buy?

UltraSpin comparison · 2026-06-12 · rubber

Butterfly Tenergy 05 HardYasaka Rakza 7 Soft
Our rating8.5/108.2/10
best_sideforehandbackhand or both
control5.59+ (Yasaka scale)
speed13.011 (Yasaka scale)
spin11.514+ (Yasaka scale)
sponge_hardness43 degrees (hard)40 degrees (37-42 ESN range)
typetensortensor/inverted
weight_uncut_g71approximately 42-44g

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Tenergy 05 Hard (8.5) is a speed machine: it generates 13.0 speed with a lower arc than regular Tenergy 05, reducing opponent reaction time. It is unforgiving of weak technique but rewards full-speed attackers with precision trajectories and spin-insensitive blocking.

Rakza 7 Soft (8.2) prioritizes forgiving control and high spin on loops and serves. Its soft sponge (40 degrees) works beautifully with new poly balls, its grippy topsheet activates spin easily, and its high throw angle clears the net generously. It performs reliably on both wings and excels in short game.

For advanced attackers seeking raw speed and precision: Tenergy 05 Hard. For intermediate and developing loopers valuing control, forgiving feel, and all-round performance: Rakza 7 Soft.

FAQ

Which rubber is more forgiving for off-center hits?

Rakza 7 Soft’s soft sponge and high throw angle provide generous safety margin. Tenergy 05 Hard punishes poor contact.

Which excels at short-game play?

Rakza 7 Soft is exceptional: precise short flicks, excellent serve and receive. Tenergy 05 Hard struggles with touch shots.

How different are they in spin production?

Rakza 7 Soft generates high spin easily through grippy topsheet. Tenergy 05 Hard achieves 11.5 spin but requires aggressive technique.

Which suits beginner-to-intermediate progression?

Rakza 7 Soft is ideal first tensor upgrade: forgiving, versatile, and encouraging proper technique without harsh penalties.

What about blade pairing?

Tenergy 05 Hard demands carbon-composite or ALC blades. Rakza 7 Soft pairs well with all-round or off-minus blades.