Yasaka Rakza 7 Soft vs Yinhe Big Dipper: Which Should You Buy?

UltraSpin comparison · 2026-06-12 · rubber

Yasaka Rakza 7 SoftYinhe Big Dipper
Our rating8.2/108.4/10
best_sidebackhand or bothforehand
control9+ (Yasaka scale)high
speed11 (Yasaka scale)medium (offensive)
spin14+ (Yasaka scale)extreme
sponge_hardness40 degrees (37-42 ESN range)38/39/40 degrees (provincial-style blue sponge; 39 measures roughly 51 ESN)
typetensor/invertedhybrid tacky (blue sponge)
weight_uncut_gapproximately 42-44g68

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Yasaka Rakza 7 Soft is a stepping-stone tensor with exceptional control, high spin and grippy topsheet creating forgiving all-round play. High throw angle and poly ball compatibility make it ideal for intermediate loopers and developing players building consistent technique.

Yinhe Big Dipper is a modern Chinese tacky rubber with porous blue sponge offering exceptional spin production. Outstanding stability and minimal ball slippage reward serious spin-oriented play. Available in multiple hardness options from 38 to 40 degrees for customization.

Rakza 7 Soft suits intermediate all-rounders developing modern tensor technique. Big Dipper suits intermediate-to-advanced spin-oriented attackers willing to engage full, active strokes.

FAQ

Which rubber spins more?

Big Dipper has extreme spin with tacky topsheet. Rakza 7 Soft has high spin but less extreme production.

Which is beginner-friendly?

Rakza 7 Soft is designed for intermediate stepping-stone use. Big Dipper is demanding and weak for flat hitting.

Which works better at distance?

Rakza 7 Soft struggles at mid-far distance without a fast blade. Big Dipper speeds at medium but demands active play.

Can Big Dipper be customized?

Yes. Big Dipper is available in 38, 39, and 40 degree hardness options. Rakza 7 Soft is standard thickness.

Which suits all-round players?

Rakza 7 Soft excels at all-round play on both wings. Big Dipper is best on the forehand.