Friendship 729 Battle II vs Nittaku Fastarc S-1: Which Should You Buy?

UltraSpin comparison · 2026-06-12 · rubber

Friendship 729 Battle IINittaku Fastarc S-1
Our rating8.5/107.9/10
best_sideFHforehand or backhand
control870
speed897
spin996
sponge_hardnesshard35 degrees
typetackyinverted
weight_uncut_g68around 41-43g

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Battle II delivers high spin through tackiness and dwell, best close to the table and for Chinese-style technique. Fastarc S-1 is a lightweight speed-first tensor that remains accessible to intermediate players—genuine tensor speed, forgiving blocking, and modest throw angle without excessive stiffness. Both offer good value. Battle II suits spin-focused loopers; S-1 suits all-round players transitioning from beginner rubbers who want pace alongside control.

Battle II sacrifices speed for spin finesse. Fastarc S-1 trades pure spin for genuine pace, making it better for varied attacking play on all-wood or moderate blades.

FAQ

Which generates more spin?

Battle II. Fastarc S-1 spin is noticeably lower than competing tensors like Fastarc G-1.

Speed comparison?

Fastarc S-1 delivers genuine tensor speed. Battle II is surprisingly fast for a tacky rubber but slower overall.

Weight and arm fatigue?

Fastarc S-1 very lightweight (around 41-43g uncut). Battle II is 68g. S-1 significantly easier on the arm.

Best for intermediates learning topspin?

Fastarc S-1 suits all-round intermediate learners. Battle II suits intermediates focused specifically on spin and serving.

Counter-topspin capability?

Battle II strong. Fastarc S-1 feels limited against heavy incoming spin.