This racket is best suited to experienced and competitive players who already have solid technique and want a one-racket solution for attacking and finishing points. The Siux Electra Stupa PRO ST4 2025 favors players who like to punch winners, step into the ball, and take control of the net.

Less experienced players or those who prioritise maximum comfort and forgiveness will likely find the medium-hard feel and the 350–375 g weight range demanding. If your game relies on power and you can handle a firmer impact profile, this model is a strong candidate.

The teardrop shape combined with a medium-high balance gives the Electra Stupa PRO ST4 2025 a power bias — the contact zone sits slightly higher, which helps create extra punch on smashes and aggressive volleys. The EVA Hard core supports fast rebound and less deformation on impact, so shots come off the face with a crisp, energetic feel.

Because the racket is described as versatile, it can switch between aggressive serves and tactical point construction. Expect the strongest gains in outright power and drive play rather than slow, touch-oriented rallies.

Despite the power-focused profile, the Siux Electra Stupa PRO ST4 2025 keeps a reasonable level of control thanks to its medium-high balance and a manageable weight spread (350–375 g). Advanced players should find it predictable on directional shots and volleys, allowing tight placement when you commit to technique.

Handling is relatively quick for a racket in this weight class, making it suitable for faster exchanges at the net. That said, players who swing very slowly or rely heavily on soft block volleys may notice the firmer core reduces passive feel.

Face: 15K Carbon — the higher-density carbon weave gives a crisp, stable contact surface that favours accurate impact and consistent response on full swings.

Core: EVA Hard — a firmer rubber core that reduces deformation and increases rebound speed, translating into more direct energy transfer on aggressive shots.

Surface: Rough — a textured finish that helps with ball bite and effects without changing the underlying impact characteristics. Hardness is listed as Medium-Hard, reinforcing the racket’s firmer, performance-focused feel.

On court the Electra Stupa PRO ST4 2025 reads as firm and responsive. The combination of 15K carbon and an EVA Hard core yields a crisp contact and relatively little deadening, so the sound and feel at impact emphasise immediacy rather than cushioning.

Players who like a solid, punchy feedback on smashes and aggressive volleys will appreciate how the racket rewards decisive swings. At the same time the rough surface adds a touch of bite for spin when you want to shape shots.

Firmness and power come with tradeoffs: the medium-hard construction and EVA Hard core make the racket less forgiving on off-centre hits and reduce the dampening of vibrations compared with softer models. That can be tiring in long sessions for players sensitive to impact.

Weight options span 350–375 g, so choosing the lighter end helps maneuverability while the heavier end boosts raw power and stability on fast exchanges. Finally, the advanced/pro positioning means the Electra Stupa PRO ST4 2025 is not aimed at entry-level players who need maximum forgiveness.

Q: Is the Siux Electra Stupa PRO ST4 2025 good for spin? A: The rough surface aids ball bite and can enhance spin potential, especially when combined with aggressive swing speed and technique.

Q: What weight should I choose? A: If you prioritise maneuverability for quick net play, aim for the lower end of the 350–375 g range; if you want maximum stability and power, the heavier range will help deliver harder, more penetrating shots.

Q: Is this racket comfortable? A: Comfort is moderate—its medium-hard profile and EVA Hard core deliver a firmer, crisper impact that advanced players will like but players seeking plush cushioning might not.

Q: Who rates it well? A: The model carries an expert rating of 8.6, reflecting its strong performance for power-minded advanced players while noting the firmer feel.