Butterfly Tenergy 05 FX vs Donic Bluefire M2: Which Should You Buy?

UltraSpin comparison · 2026-06-11 · rubber

Butterfly Tenergy 05 FXDonic Bluefire M2
Our rating8.4/108.4/10
best_sidebackhandboth
control10medium-high
speed13high
spin11.5high
sponge_hardness36 degrees (soft)around 42.5 to 45 degrees (medium)
typeInverted / High-Tension tensor (Spring Sponge)tensor inverted
weight_uncut_g6468

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Tenergy 05 FX and Donic Bluefire M2 both deliver high spin and speed through tensor sponges. 05 FX is softer at 36 degrees with a higher throw, making flicks and slow-ball spins effortless and forgiving of off-centre contact. M2 plays around 42.5-45 degrees, balanced between the harder M1 and softer M3, with excellent backhand performance on flicks, loops, blocks and sidespin.

M2’s grippy topsheet and strong catapult respond well to boosting, offering excellent value as a lower-cost alternative to Japanese rubbers. Its bouncy nature on slow touches can complicate short pushes. 05 FX is more linear and consistent, especially for passive game play. Choose 05 FX for all-round versatility; pick M2 for backhand-focused, spinny looping who tolerate bounciness.

FAQ

Which is softer?

05 FX at 36 degrees; M2 is 42.5-45 degrees. M2 is noticeably stiffer and spins differently.

Is M2 good on backhand?

Excellent. M2 is very grippy with high arc; 05 FX is more versatile across both wings.

Does M2 bounce too much?

Yes, short pushes and passive blocks go long. 05 FX is more neutral on slow touches.

Can I boost M2?

Yes, it responds very well. Red topsheet durability fades under heavy boost use; 05 FX is naturally durable.

Price and value?

M2 is cheaper and offers strong value for developing attackers. 05 FX is premium but lasts longer.