Butterfly Sriver FX vs Yasaka Rakza X: Which Should You Buy?

UltraSpin comparison · 2026-06-07 · rubber

Butterfly Sriver FXYasaka Rakza X
Our rating7.8/108.4/10
best_sidebothboth
controlhighmedium-high
speedmediumhigh
spinmedium-highhigh
sponge_hardnesssoft47.5 (medium-hard, roughly 45-50 degrees)
typehigh-tension inverted (soft)tensor inverted
weight_uncut_g6269

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These rubbers meet at control but diverge on power. The Sriver FX is a soft, forgiving sheet built for blocking, chopping and steady play at a low price. The Rakza X is a faster, grippier tensor with a high, safe throw arc that excels on loops and counter-topspins, yet stays linear and predictable for its speed.

For a soft feel, maximum forgiveness and a control or defensive game, the Sriver FX is the pick. For grippy high spin, a high throw and more pace, with a forgiving touch for a fast tensor, the Rakza X is the upgrade on either wing.

Mind the trade-offs. The Rakza X is heavy and adds noticeable weight, its grip can fade after a couple of months of heavy use, and it is harder to control if you come straight from soft rubbers. It is a natural step up for anyone who liked Rakza 7 but wants more control in blocks and loop exchanges.

FAQ

Which throws higher?

The Rakza X, with a high, safe throw arc that suits loops and counter-topspins. The Sriver FX is a low-to-medium-feel classic without the modern high throw.

Is the Rakza X good for blocking and lobs?

Its short game is strong with a forgiving touch, but it is weaker for passive blocking and lobs. For purely passive defense the soft Sriver FX is more forgiving.

Will the Rakza X feel hard if I come from a soft rubber?

It can. The Rakza X is harder to control for players moving straight from soft rubbers like the Sriver FX, so expect an adjustment period.