Siux Electra Stupa Pro ST4 2025
7.4padell.io scoreSpecs only- Shape
- Hybrid
- Weight
- 360 to 375 g
- Balance
- Slightly head-heavy
- Core
- Hard EVA
The Siux Electra Stupa Pro ST4 2025 is Franco Stupaczuk's hybrid racket. It is listed at 360 to 375 g with 15K carbon, a hard EVA core and a medium-high balance. On paper it is a power tool: only power reads High, while control, comfort and maneuverability read Low. The catch is that no reviews exist yet, so this is a specs-based read.
RBy Ruud Caris · facts checked 5 November 2026Choose it if
- you are an advanced player who wants an attacking, heavy, hard racket to do the work
- you already handle a 360 g plus racket without arm trouble and want more punch from it
- you want a racket linked to Franco Stupaczuk and accept a firm, demanding feel
Skip it if
- you want more control than this racket gives, as the Dunlop Galactica Pro By Nisse 2026 reads Medium for control
- you are still building technique or coming back from elbow or shoulder pain
- you need a quick racket for fast exchanges at the net and would rather look at a lighter option than this 360 to 375 g one
How it plays
Line = the average of all rackets ▲ above ▼ below
On paper this is a heavy attacking racket, and the specs point one way.
- Control Low, because the medium-high balance lowers it, even though the carbon face and hybrid shape raise it.
- Power High, as the hard core, carbon face, hybrid shape, weight and balance all push in that direction.
- Comfort Low, since a hard core, stiff face and heavy build usually send more shock to your arm.
- Handling Low, because the weight and the medium-high balance make it slower to swing and to bring up.
- Forgiveness Low, as the hard EVA core points to a smaller area of clean response.
Specifications
Not published by the brand: thickness, head size, handle, frame
Specs from padelnuestro.com · checked 25 September 2026 · Spotted a wrong spec? Report it →
Video reviews
6 videos from independent channels and shopsEvery version
Compare all versions →
The 2024 Siux Electra ST3 Stupa Pro is listed with a medium balance, a bottom weight of 355 g and the level Advanced. This racket shows medium-high, 360 g and Advanced / Professional. The face is listed as Carbon 15K 20*40 Textreme on the ST3 and as 15K carbon here. The surface reads Sandy on the ST3 and Rugged Surface here. The level gap makes it doubtful that the ST3 is a true predecessor, so do not read it as a proven upgrade. The core, hybrid shape, top weight of 375 g and Franco Stupaczuk are the same. If you want the older one, check its page and compare the two side by side.
Price history
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Franco Stupaczuk's racket is sold as a mix of power and control, but only one of its five meters reads High, and it is not control. That is the first thing to know before you look at the rest.
Power and control, says the page: where the claim and the meters split
The product page calls it a racket for a "polyvalent and aggressive" game and says it balances power and control. That is the marketing claim. The specs tell a narrower story. Power reads High. Control reads Low.
The reason sits in the build. A carbon-stiff face and a hybrid shape raise control. But the medium-high balance pulls it down again. So you get a racket that rewards a full swing more than a delicate touch. Not a control racket with extra power, but a power racket you have to control yourself.
A pro's racket at 360 to 375 g: what it asks of an advanced arm
The listed weight range is 360 to 375 g. That is heavy. Retailers list the level as Advanced / Professional, and that fits.
What do you notice with that weight? Mass behind the ball. You also notice it late in a long match, when the arm tires and the racket gets slower to bring up. Maneuverability reads Low for exactly this reason.
The listing gives only the range, so the exact weight of a single racket is not published. The weight system is not published either.
Hard EVA under 15K carbon: why comfort and sweet spot read Low
The core is hard EVA. The face is 15K carbon. Together they make a firm racket. Firm means the ball leaves quickly, but also that more vibration reaches your hand.
Comfort reads Low because of the hard core, the stiff face, the weight and the balance. Sweet spot reads Low because of the hard core. The retailer lists ShockOut anti-vibration. Treat that as a small help, not a cure. If your elbow already complains, this is not the racket to test it on.
The surface is listed as Rugged Surface. The product page says the sandy finish enhances the effects. That is the brand's claim, and no reviewer has measured it here.
ST3 or ST4: why the older listing is a careful comparison
The Siux Electra ST3 Stupa Pro from 2024 is the closest older listing. Both share the hard EVA core, the hybrid shape, Franco Stupaczuk and a top weight of 375 g.
The sheets differ in a few labels. The ST3 shows a medium balance and a bottom weight of 355 g. This one shows medium-high and 360 g. The level also differs: Advanced against Advanced / Professional. That last gap makes it doubtful that the two are direct successors. Read it as two listings that sit close together, not as a proven upgrade.
Next to the Black Titan 2026 and the Galactica Pro By Nisse: the Dunlop gives more control
The StarVie Black Titan 2026 has almost the same profile. It is hybrid, hard EVA, 360 to 376 g, and all meters match this racket. The face is 24K carbon and the balance is listed as High.
The Dunlop Galactica Pro By Nisse 2026 is also hybrid and 360 to 375 g. Its control reads Medium instead of Low. It is listed as Advanced, not Professional. If you like this weight class but want a little more room for placement, that one is worth a look.
What the listings leave out
Several key numbers are missing. Balance in mm, head size, thickness, frame and handle are all not published. The balance is only given as a label, medium-high.
That matters. Two rackets with the same label can swing quite differently. Without reviews or measurements, treat everything here as an on-paper reading. If you can, try it before you commit.
Similar rackets
All rackets that play like the Siux Electra Stupa Pro ST4 2025 →
Questions before you buy
Is the Siux Electra Stupa Pro ST4 2025 good for intermediate players?
Probably not. Retailers list it as Advanced / Professional, and the specs show a heavy, hard racket with Low comfort and control. An intermediate player with a strong arm could manage, but it is not forgiving.
How heavy is it?
It is listed at 360 to 375 g. That is heavy, and it fits with the Low maneuverability reading. The exact weight is not published beyond that range.
Is it the same as the Electra ST3 Stupa Pro?
No. Some specs match, such as the hard EVA core and hybrid shape, but balance, minimum weight and level differ. The older listing may be a different model, so treat the comparison with care.
Will it be hard on my elbow?
On paper, it can be. The hard core, stiff carbon face and weight all lower comfort, and no reviewer has tested it. The retailer lists ShockOut anti-vibration, but that will not fully offset the firmness.
Is the Electra Stupa Pro ST4 2025 worth the money right now?
Today's price is labelled "Good value" compared with the rackets that play most alike. Which shops deliver, and what shipping costs, depends on your country. The price comparison shows it for yours.
See all pricesWhat is the closest alternative?
The StarVie Black Titan 2026 plays most alike. On paper the differences are under one point. Today: € 164.90.
Compare side by side →Who should not buy it?
Skip it if you rely on placement and long rallies (control 5.0/10), or if your elbow or shoulder complains (comfort 1.5/10), or if you are still learning: it is not very forgiving (4.5/10).
How heavy is it really?
The brand gives 360 to 375 g. That counts as medium. Each racket can differ within that range.
Why a range? →