Siux
Electra STUPA PRO ST4
Franco Stupaczuk's racket for 2025 combines 15K carbon with a hard core and rough texture. A hybrid shape promising versatility on paper.
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Explosive • Control focused • Stable
The Siux Electra STUPA PRO ST4 2025 is Franco Stupaczuk's signature racket, reflecting his aggressive, spin-focused game. Hybrid shape, medium balance and a hard EVA core appear aimed at switching between attack and defence. First impressions and limited playing experiences suggest versatility, but concrete feel and durability conclusions require more testing.
Electra STUPA PRO ST4 2025 has a hybrid shape between round control and teardrop power. Weight is between 355 and 375 grams, with medium balance not too head-heavy but promising enough forward mass for stroke authority. Profile is 38 mm, substantial without being extremely thick.
The face is 15K carbon fiber, denser than standard 3K or 12K, generally giving somewhat firmer, more direct contact. Hard EVA core provides little inherent trampoline effect and forces quick players to do the work themselves. The frame combines 3K carbon and aramid for intended structural strength without too much weight. Rough face texture aims to increase ball grip and facilitate spin.
With recommended price around 290 euros and current price around 112 euros, Electra STUPA PRO ST4 2025 appears a more accessible alternative within the Siux professional segment.
What you will notice as a player
The smash gets plenty of easy power; you do not need a full follow-through to put the ball away.
The racket helps in defense: a calm swing sends balls off the glass deep again.
No pronounced weakness, but no single shot where the racket particularly stands out either.
Which shots are affected most?
| Situation | What will you notice? |
|---|---|
| Defense | Plenty of help: the low balance and generous sweet spot return balls off the glass calmly and deep. |
| Volley | Comfortable and stable; aiming is easy and you keep the ball low. |
| Bandeja | Easy to control: the ball stays reasonably low and predictable. |
| Vibora | Very explosive: plenty of speed and bite, a natural shot for this racket. |
| Smash | Its strongest point: maximum power with little effort, sending the ball away like a rocket. |
| Block | Stable: the racket is ready in time and returns the ball with control. |
| Off-center ball | Reasonably forgiving: outside the sweet spot you lose some speed, while accuracy is largely maintained. |
This racket suits a broad range of players.
Well suited to
Less suited to
This racket suits a broad range of players and needs.
This racket is likely to suit you if you…
want more power and strength in your smash
like to play an attacking, explosive game
This racket may disappoint if you…
have a sensitive arm
often have to play from defense
want plenty of comfort and cushioning
You will probably appreciate this racket if you…
- •value an explosive smash and vibora more than comfort;
- •want a racket that helps in defense;
- •want a balanced racket that handles every shot;
You may run into limitations if you…
- •want a pronounced specialist rather than an all-round racket;
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Personal advice
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Indicatieve marktprijs
€112 ·