Yasaka Rakza 7 Table Tennis Rubber Review
The Yasaka Rakza 7 reads 9.5/13 spin and 9/10 speed at 45-degree hardness on a 2.0mm sponge for $28-38.
Specifications
| Hardness | 45 |
| Sponge Thickness | 2.0mm |
| Type | inverted |
| Rubber Type | inverted |
| Weight Per Sheet | 46g |
| Tensor Type | tensor |
What Type of Rubber Is the Yasaka Rakza 7?
The Yasaka Rakza 7 uses a 45-degree 2.0mm sponge with built-in tension that catapults the ball at 9/10 speed and 9.5/13 spin on full strokes. At $28-38, the Yasaka Rakza 7 sits in the competition tensor tier where rubber selection comes down to sponge hardness and trajectory shape rather than basic spin output.
The 75-degree throw angle keeps the ball on a flatter trajectory, ideal for counter-driving and over-the-table flicks where height costs the player time. The 45-degree hardness rewards full strokes: light brushing leaves energy in the sponge unused, while accelerated contact loads the rubber and snaps the ball forward. The trade is a steeper learning curve compared to softer tensor sheets.
How Does the Yasaka Rakza 7 Compare to Butterfly Tenergy 05?
Spin output reaches 9.5/13 with the Yasaka Rakza 7 versus 11.5/13 for the Butterfly Tenergy 05 at $28-38 versus $65-80. The Yasaka Rakza 7 runs a 45-degree sponge against the Butterfly Tenergy 05’s 36-degree sponge, a difference that changes the rubber’s behavior on different stroke types.
Players who hit through the ball with full arm acceleration extract more from the Yasaka Rakza 7 than the Butterfly Tenergy 05: the harder sponge stores energy that softer rubbers leak before contact ends. Players whose technique relies on a softer touch and longer dwell time get more spin from the Butterfly Tenergy 05’s lower hardness.
Which Blade Pairs Best with the Yasaka Rakza 7?
The Yasaka Rakza 7 pairs with stiff offensive blades that match its hardness. The Butterfly Viscaria at $150-190 with its 7-ply Arylate-Carbon construction handles the Yasaka Rakza 7’s 9/10 speed without flexing under contact. All-wood blades soften the Yasaka Rakza 7’s response, blunting the sponge’s energy transfer.
On the forehand specifically, the Butterfly Timo Boll ALC at $170-200 produces a slightly softer composite feel with similar speed. Players who use Chinese-style technique often pair the Yasaka Rakza 7 with the Butterfly Viscaria for a setup that matches the National Team’s hardware profile.
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Related Rubbers
Butterfly Aibiss ~$25–32 
Butterfly Bryce High Speed ~$45–55 
Butterfly Buggler ~$40–50 
Butterfly Challenger Attack ~$20–28 Is the Yasaka Rakza 7 good for beginners?
The Yasaka Rakza 7 is not suited for beginners. Its 45-degree hardness requires developed stroke mechanics to load the sponge fully. Beginners benefit more from the [Yasaka Mark V](/products/yasaka-mark-v/) or another softer rubber until they can consistently loop at match pace.
How does the Yasaka Rakza 7 compare to Butterfly Tenergy 05?
The Yasaka Rakza 7 reads 9.5/13 spin against 11.5/13 for the Butterfly Tenergy 05 at $28-38 versus $65-80. The Yasaka Rakza 7 fits players who want a harder, more direct sponge response without paying tournament-level prices.
How long does the Yasaka Rakza 7 last?
The Yasaka Rakza 7 maintains peak performance for 50-80 hours of competitive play, which translates to 2-4 months for players who train 3-5 sessions per week. Recreational players who play once weekly can expect 6-12 months before noticing reduced grip on the topsheet.