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Siux

Siux Electra Stupa Pro ST4 Review (2025)

The ST4 Pro Stupa is Stupaczuk's 2025 frame with the confirmed vitals of a modern attacker: even balance, 365 g, and a scorecard that reads first-strike padel.

Reviewed by Carlos Ruiz
89Our score
Strongest
  • Power88
  • Value78
  • Control76

No brand pays for a score. Every racket is scored with the same published method. Better than 92% of the 518 rackets we have scored.

Siux Electra Stupa Pro ST4 padel racket, Hybrid shape

Hybrid · 15K · Head-heavy · Professional

Our verdict

What we loved

Four things it does better than most.

Even 365 g setup keeps hands quick for the power on tap
First-strike pace that ends rallies (power 88)
Value 78 on a signature frame
Trustworthy drive control under pressure
Worth knowing

Three things to know before you buy.

Full spec unconfirmed, so demo before you buy
Firm strike, modest forgiveness (tolerance 66)
Superseded by the ST5 if you want the current build

Not for you if

  • Full spec unconfirmed, so demo before you buy
  • Firm strike, modest forgiveness (tolerance 66)
  • Superseded by the ST5 if you want the current build

What players say

No player has rated the Siux Electra Stupa Pro ST4 yet. Yours would be the first.

How would you rate it?

One tap is a rating. Add more if you have a minute.

Score it on five things.

Power
Control
Handling
Sweet spot
Comfort

How much have you played it?

Worth the money?

Anything players should know?

Optional. What surprised you, and who it suits.

Your rating is in.

You
0 stars
Our score
89/100

You are the first player to rate the Siux Electra Stupa Pro ST4. Players at your level will see your rating here.

Inside the frame

A hybrid with a 15K face, balanced head-heavy, built for professional players.

Shape
Hybrid
Face
15K
Balance
Head-heavy
Level
Professional
Siux Electra Stupa Pro ST4

The review

The ST4 Pro Stupa is Stupaczuk's 2025 frame with the confirmed vitals of a modern attacker: even balance, 365 g, and a scorecard that reads first-strike padel.

Power 88 converts pressure into finished points, control 76 keeps heavy drives inside the lines, and comfort 67 with tolerance 66 tells you the strike is firm and honest about mishits. Beyond weight and balance, the full specification is unconfirmed, so demo before committing. Value 78 reflects the run-out pricing on last season's signature line: for aggressive all-courters, it is a lot of racket for the money.

Highlights

Top 6% of everything we have scored, and in the bottom quarter for sweet spot.

Both are true at once, and between them they are the whole review. Our score is better than 93% of the 518 rackets we hold a score for, and only 37 have ever scored 89 or better.

The balanceHead-heavyMore in Inside the frame
Our score89 · better than 93%
Power88 · better than 89%
Value78 · better than 65%
Control76 · better than 61%
Handling71 · better than 36%
Comfort67 · better than 21%
Sweet spot66 · better than 20%

Against the rest

Compare any two →

The Oxdog Pure Tour X wins 4 of the 6 scores. This racket costs €103 less.

PowerControlSweet spotComfortHandlingValue
This racketOxdog Pure Tour X
88Power88
76Control+2197
66Sweet spot+3298
67Comfort+2895
71Handling+2495
78+12Value66
€121Price€103 apart€224

Price

Siux Electra Stupa Pro ST4 · at PadelProShop
€121
Buy at PadelProShop€32563% off

When you buy through PadelProShop we earn a commission. It never changes a score. Our affiliate policy

€1219 Nov
MayNov
Lowest recorded€116
Average€141
Highest recorded€169
Tell me when it drops to€110
€60€121, today's price

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The line

Four years of the Electra.

All versions we have scored, newest first. This racket is marked.

20272 versions · 82 to 89

20241 version · 76

About the Electra line

The SIUX Electra is built around a specific kind of game. Franco "Stupa" Stupaczuk plays at full intensity at the net, finishes points overhead, and is never out of a rally through the glass. SIUX designed the Electra to match that: a hybrid shape that sits between a control-first round and a pure power diamond, loading up genuine finishing pace while keeping a face soft enough to play touch padel. That balance is harder to achieve than most brands admit, and the Electra has been one of the few rackets in our database to genuinely hold both ends of it.

We have tracked the line across three generations. The 2023 ST2 Pro scored 85 with us and set the Electra template: fast through the air, composed under pressure, with a face that let you redirect a vibora or place a clean bandeja without needing to think twice. The 2024 ST3 arrived with a stiffer hitting surface and better stability when opponents loaded pace at you; the ST3 Stupa scored 87, with Lite editions widening the family to lighter swing weights for improvers. The current ST5 Pro editions, Fire Red and Shadow Stupa, both score 91, the highest result SIUX has achieved in our database.

Each generation follows the same structure: a Stupa Pro edition at the top, designed for attacking players who want to smash overhead and still play a composed bajada off the back wall, with Lite and Go trims below for players building toward that kind of game. The ST generation number is the real thread through the range, and what the Electra has consistently rewarded is a particular construction of points: build through the glass, close at the net, finish overhead.

Go straight to an Electra ST5 Pro edition if your budget allows. Both the Fire Red and the Shadow Stupa score 91 with us, and there is no meaningful performance difference between the two colourways. This is the most complete version of the Electra we have tested: it finishes points overhead with authority, stays composed under pressure in the back-court, and gives you enough feel at the net to play a proper bandeja when the rally demands placement over pace. If you find ST3 Stupa stock at clearance, a 87 on our score result is hard to argue with at a sharp enough discount. It remains a clean, capable racket and the gap to the ST5 barely registers on court when the price is right.

The Lite and Go editions are not lesser Electras so much as a different racket in character. Less swing weight, a softer overall response, better suited to players still developing consistency than to attacking players looking to load genuine finishing pace. They are honest options at the right price, but if you are after the full Electra experience, a Pro edition is the one to buy.

Rankings

Top 5 in three of the four lists it is in.

63% offwas €325Buy €121