The Siux Electra Pro ST4 is Franco Stupaczuk’s racket for 2025. It has a hybrid teardrop shape and a mid to high balance, aiming to mix the power of a diamond with the control of a round racket.
The faces are 15K carbon over a hard Black EVA core, with a 3K carbon frame. It also has the Siux Switch Strap system, which lets you change the wrist strap quickly.
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Best UK Deal on the Siux Electra Pro ST4
Padel Market has it for £147.99, almost half the original £281.99. We did not find the ST4 at Padel Boost or Amazon UK.
Who Is It For?
The ST4 suits advanced players who attack but still want some control. The firm feel rewards players with good technique and a fast swing.
Good for
- Advanced players
- Attacking players who still want control
- Players who like a firm, direct feel
Not ideal for
- Beginners and intermediates
- Players who want a soft, comfortable racket
Specs at a Glance
| Spec | Siux Electra Pro ST4 |
|---|---|
| Brand and year | Siux, 2025 |
| Shape and balance | Hybrid teardrop, mid to high balance |
| Core | Black EVA (hard) |
| Faces | 15K carbon |
| Frame | 3K carbon |
| Extras | Switch Strap system |
| Level | Advanced |
What It Feels Like
The ST4 is firm and direct. The 15K carbon faces and hard core give a fast ball off the face, especially on overheads.
The hybrid shape keeps it more manageable than a pure diamond, so volleys and blocks are steady. Comfort is not its strong point, though, and off centre hits are felt.
UK Prices
| Shop | Price | Buy |
|---|---|---|
| Padel Market | £147.99 (was £281.99) | Check price |
Padel Market is the only UK stockist we found, and the current price is close to half the original.
Should You Buy It?
This is a powerful, firm racket for good players. At £147.99 it is far cheaper than at launch, which makes it a tempting choice for an advanced attacker.
Rackets to Compare
Compare with
For more choice, see our best padel rackets UK guide.
Quick Answers
Who uses the Siux Electra Pro ST4?
It is Franco Stupaczuk’s signature racket.
Is the Siux Electra Pro ST4 soft or firm?
It is firm. The hard Black EVA core and 15K carbon faces give a direct, powerful feel.
Where is the Siux Electra Pro ST4 cheapest?
Padel Market at £147.99 when we checked.
Prices checked on 6 November 2026. Specs from Siux and Padel Market.
