Butterfly Tenergy 19 vs Nittaku Fastarc C-1: Which Should You Buy?

UltraSpin comparison · 2026-06-10 · rubber

Butterfly Tenergy 19Nittaku Fastarc C-1
Our rating8.7/108.4/10
best_sideforehandbackhand or allround
controlhigh — extended dwell time provides greater margin for error than other Tenergy variantshigh
speed13215.25 (Nittaku scale)
spin11712.25 (Nittaku scale)
sponge_hardness36 degrees (approx 48 degrees ESN)45 degrees
typeinverted / pimples-in tensorinverted / tensor
weight_uncut_gapprox 49 gapprox 47 g (157 x 150 mm sheet)

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Tenergy 19 is the premium forehand-focused tensor with higher spin ceiling and extended dwell time, demanding advanced technique and carbon or ALC blades. Nittaku Fastarc C-1 delivers outstanding spin and forgiving high arc, ideal as a backhand rubber or all-round option, with excellent mid-distance control and Tenergy 64/80 value. C-1 has lower top-end speed than G-1 and requires active strokes to generate passive spin. Tenergy 19 is more spin-biased and harder; C-1 is more forgiving and versatile. C-1 suits intermediate-to-advanced players seeking premium spin with ease of use and backhand flexibility; Tenergy 19 suits dedicated forehand attackers.

FAQ

Which is faster?

Tenergy 19 is rated 132 speed. C-1 is rated 15.25 on Nittaku scale, lower ceiling than faster tensors.

Which is better on backhand?

C-1 is excellent as a backhand rubber. Tenergy 19 is forehand-optimized.

Who should pick Tenergy 19?

Intermediate-to-advanced forehand-dominant players with good technique who prioritize high spin on loops.

Who should pick C-1?

Intermediate-to-advanced players wanting premium tensor spin with forgiving feel, ideal for backhand or all-round forehand, mid-distance strikers.

Price and value?

C-1 offers strong value versus Tenergy 64 or 80 at lower price. Tenergy 19 is premium-priced but highest spin ceiling.