Butterfly Tenergy 64 vs Yasaka Rakza X: Which Should You Buy?

UltraSpin comparison · 2026-06-07 · rubber

Butterfly Tenergy 64Yasaka Rakza X
Our rating8.6/108.4/10
best_sideboth wings, but especially the backhand and for speed-first attackersboth
controlmedium-highmedium-high
speedvery highhigh
spinhigh but the lowest of the Tenergy linehigh
sponge_hardnessapproximately 36 degrees on the Butterfly scale (around 48 degrees ESN, plays nearer 45)47.5 (medium-hard, roughly 45-50 degrees)
typespring sponge high tension tensor, inverted topsheettensor inverted
weight_uncut_gapproximately 70 (around 47 g cut at 2.1 mm)69

We may earn a commission from links on this page. Learn more.

Tenergy 64 is the fastest Tenergy, spin-insensitive and excellent for blocking and direct hitting, with a light cut weight. The downsides are its premium price, low throw and unforgiving passive serve receive.

The Yasaka Rakza X offers outstanding grip that produces high spin and overrides incoming spin, a linear and predictable response and a high, safe throw arc that excels on loops and counter-topspins. It also has a strong, forgiving short game. The trade-offs are extra weight on the racket, grip that can fade after a couple of months and weaker passive blocking.

Pick Tenergy 64 for top-end speed and spin-insensitive blocking on either wing. Pick the Rakza X if you are an intermediate-to-advanced attacker who wants a grippy, high-spin tensor with a forgiving feel and high throw at a mid-range price, especially if you liked Rakza 7 but want more control in blocks and loop exchanges.

FAQ

Which rubber has a higher throw?

The Yasaka Rakza X has a high, safe throw arc that excels on loops and counter-topspins, whereas Tenergy 64 has a low throw that needs an angle adjustment.

Which is better for blocking?

Tenergy 64 has the edge for blocking with its spin-insensitive feel and reliable active blocks. The Rakza X is weaker for passive blocking and lobs.

Is the Rakza X heavy?

Yes, it is on the heavy side and adds noticeable weight to the racket. Tenergy 64 is light for an offensive rubber by comparison.