Butterfly Tenergy 05 FX vs Nittaku Fastarc C-1: Which Should You Buy?

UltraSpin comparison · 2026-06-11 · rubber

Butterfly Tenergy 05 FXNittaku Fastarc C-1
Our rating8.4/108.4/10
best_sidebackhandbackhand or allround
control10high
speed1315.25 (Nittaku scale)
spin11.512.25 (Nittaku scale)
sponge_hardness36 degrees (soft)45 degrees
typeInverted / High-Tension tensor (Spring Sponge)inverted / tensor
weight_uncut_g64approx 47 g (157 x 150 mm sheet)

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Tenergy 05 FX is a premium soft tensor with elite spin and outstanding backhand control. Its 36-degree sponge extends dwell time for flicks and slow-ball spin, ideal for advanced club players whose backhand technique favours touch over raw pace.

Nittaku Fastarc C-1 shares the grippy G-1 topsheet with a softer sponge around 45 degrees, delivering a forgiving high arc on opening loops. Its excellent spin and dwell time on active strokes make mid-distance striking and controlled power easy. It is slower than Fastarc G-1 or Tenergy 05 at the top-end speed ceiling, and passive strokes generate less free spin. Strong value versus premium Tenergy alternatives, with durable topsheet grip that holds up well. Excellent backhand choice or all-round forehand option for intermediate-to-advanced looping specialists.

FAQ

How different are the sponges?

05 FX is 36 degrees (soft); Fastarc C-1 is around 45 degrees (medium). C-1 is noticeably stiffer.

Which suits backhand better?

05 FX is ideal for backhand; C-1 is also excellent but less specialized for backhand feel.

What is the price difference?

Fastarc C-1 is cheaper than 05 FX, offering strong value while trading some ultimate speed ceiling.

Is C-1 better on active or passive strokes?

C-1 excels on active strokes; passive spin is weaker. 05 FX is linear across all swing speeds.

Does C-1 topsheet last longer?

Yes, Fastarc topsheet durability is excellent, better than many premium competitors.