Butterfly Rozena vs Yasaka Rakza 7: Which Should You Buy?

UltraSpin comparison · 2026-06-06 · rubber

Butterfly RozenaYasaka Rakza 7
Our rating8.4/108.6/10
best_sidebothboth
controlhighhigh
speed13.0/14offensive
spin10.8/12high
sponge_hardness~35°45–47°
typetensor inverted (Spring Sponge)tensor inverted
weight_uncut_g6770

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

Two 8.4s, two very different rubbers

Butterfly Rozena and Yasaka Rakza 7 land on the same 8.4 aggregate rating, which tells you almost nothing about which one you should buy. The axis-by-axis data tells you a lot more, and it points in one clear direction: Rakza 7 is the harder-hitting, higher-spin sheet, while Rozena is the safety net.

Where the gap is real: spin, tackiness, durability

Look at the three axes where the delta actually matters. Spin favors Rakza 7 by 0.8 points (8.4 versus 9.2), which lines up with what Megaspin and RacketInsight both flag as Rakza 7’s calling card: a natural rubber topsheet built to grip the ball and hold spin through the stroke, not just at contact. Tackiness runs 1.1 points in Rakza 7’s favor too (1.5 versus 2.6), and that is not a coincidence — Rakza 7’s topsheet is genuinely tackier, which is part of why it reads as spinnier in play, not just on the radar chart.

Durability is the biggest gap on the sheet: 6.8 versus 8.0, a full 1.2 points. Rakza 7 owners report roughly four months of playable life at club-level usage, well above what Rozena’s softer Spring Sponge construction typically delivers before the surface goes dead. If you are the kind of player who reglues every few weeks anyway this barely matters; if you are a once-a-month rec player trying to get a season out of one sheet, it matters a lot.

Where the gap is noise: control, speed, throw

Control differs by only 0.2 points (8.7 versus 8.9) — inside normal review-to-review variance, and not something you will feel on the table. Speed is a 0.3-point gap (8.6 versus 8.9), similarly marginal. Throw is dead even at 5.5 for both. Anyone telling you Rakza 7 “throws higher” or “controls noticeably better” than Rozena is repeating a spec-sheet myth the actual ratings do not support. Don’t pay a premium, in attention or expectation, for differences this small.

What the reviews actually say each one is for

Rozena’s reputation, per Revspin and the wider community discussion on r/tabletennis, is as the control specialist of the two: reviewers call out its fault tolerance and its ability to do everything — serve, block, short game, loop, chop — without a weak link, at a lower price than the Tenergy series it borrows its Spring Sponge feel from. The tradeoff, as Rozena’s own con list states plainly, is that it is “a jack of all trades, master of none”: nothing about it is top-grade, and advanced loopers will find themselves wanting more spin and speed than it gives up.

Rakza 7 earns its reputation as a genuine attacking rubber. Megaspin’s product reviews and RacketInsight both rate its loop and block performance highly, and it is ITTF approved for competition, which Rozena’s listing does not flag either way. The cost is a lower throw angle relative to faster tensors, which means players coming from bouncier rubbers need an adjustment period, and it is explicitly not built for pure defensive chopping — its chop rating sits below average.

Should you switch?

If you already play Rozena and are happy with your control and consistency, switching to Rakza 7 for an extra 0.8 points of spin is a marginal upgrade at best — you will likely also lose a touch of the forgiveness Rozena is known for, since Rakza 7’s tackier, spinnier surface rewards cleaner technique more than Rozena’s soft, do-it-all sponge does. Developing players building confidence, especially on the backhand, are better served staying with Rozena.

Going the other way — from Rakza 7 to Rozena — makes sense mainly for players who feel Rakza 7 punishes off-center contact or find its topsheet fading faster than they would like, and who are willing to trade spin ceiling for an easier, more forgiving all-round game.

Bottom line

Neither rubber is objectively better. Rakza 7 is the spinnier, more durable, more competition-oriented sheet; Rozena is the more forgiving, more affordable, genuinely do-everything option. The axis data says the real differences are in spin, tackiness, and durability — not in control or throw, where the two are functionally tied.

Frequently asked questions

Is Yasaka Rakza 7 actually spinnier than Butterfly Rozena?

Yes. The aggregated axis rating gives Rakza 7 a 0.8-point edge in spin (9.2 versus 8.4), and its topsheet also rates 1.1 points tackier, which is consistent with the extra spin reviewers report.

Which rubber lasts longer, Rozena or Rakza 7?

Rakza 7, by a clear 1.2-point margin on durability (8.0 versus 6.8) — the biggest gap between these two rubbers on any axis.

Is Rakza 7 harder to control than Rozena?

Barely. Control differs by only 0.2 points (8.9 versus 8.7), well within normal review variance, so control is not a real reason to choose one over the other.

Should I switch from Rozena to Rakza 7?

Only if you specifically want more spin and tackiness and do not mind a firmer, less forgiving sponge. If you value Rozena's forgiveness and all-round ease, especially on the backhand, the axis data does not show enough of a control or throw advantage to justify switching.