
Butterfly
Sriver FX
Butterfly Sriver FX is a 1990 inverted (pimples-in) sheet made in Japan. It belongs to the Sriver series, is ITTF-approved, and is aimed at control allround (ALL−) players who want control-oriented allround and blocking.
8.4 community score · 480 reviews · €28
About Sriver FX
Sriver FX uses classic (non-tensor) sponge with longer dwell and a more linear feel and a grippy, non-tacky topsheet typical of European tensors. Manufacturer sponge hardness is 32° (Classic); a cut sheet is about 40 g. Factory sponge thicknesses: 1.8, 1.9, 2.0, 2.1, MAX. Sold with topsheet in Black and Red; sponge in salmon. Sriver is Butterfly's classic Japanese inverted rubber, the long-running non-tensor reference sheet.
On the TableTennisReview 0–100 index the Combined figures are speed 70, spin 76 and control 94 (official mapping 69 / 75 / 94). That is a control-first inverted profile for control-oriented allround and blocking. Hardness, weight and thickness above are factory facts — not lab tests.
Community score 8.4 / 10 from 480 reviews. Indicative European street price €28. Compare Sriver FX with other Butterfly Sriver and inverted rubbers on the same scale, or open the catalogue filters for ALL− inverted sheets.
Playing specs
Blend of official and community. Community weight 57% with 480 reviews (20–60% as sample size grows).
Tick mark on each bar is the official value.
Factory specifications
- Hardness
- 32°
- Weight
- 40 g
- Year
- 1990
- Made in
- Japan
- Series
- Sriver
- Top sheet
- Black · Red
- Sponge
- salmon
Factory thicknesses
Factory sponge thicknesses sold in Europe: 1.8, 1.9, 2.0, 2.1, MAX. These are shopping facts — Combined speed / spin / control on this page do not change with thickness.
- 1.8
- 1.9
- 2.0
- 2.1
- MAX
- 1.8
- Thinner inverted sponge. Allround and first-upgrade backhands live here more often than attacking forehands.
- 1.9
- The usual club backhand thickness on inverted tensors. A bit more control, a bit less catapult than 2.1 / MAX.
- 2.0
- Mid-thick. Common on the backhand when MAX felt lively, or as a two-wing compromise.
- 2.1
- Still a thick attacking sponge. A small step down from MAX on some tensors — shops treat it as the other FH thickness, not a control sheet.
- MAX
- Thickest factory sponge. Most catapult on a tensor; the usual attacking forehand. Combined figures on this page are for the SKU, not a separate MAX score.
Vs type average
Combined index against other inverted rubbers. Toggle Official / Community in the spec card — the chart stays on Combined so filters stay comparable.
- Sriver FX
- Type avg
Zoomed 50–100 scale · the inner ring is 50, not 0, so gaps around the average actually show.
Speed
70
-12 vs Type avg
Spin
76
-11 vs Type avg
Control
94
+11 vs Type avg

