Overall rating distribution
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Power · 0 ratings—
Control · 0 ratings—
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Maneuverability · 0 ratings—
Siux · 2025
Electra Stupa Pro ST4
The Siux Electra Stupa Pro ST4 2025 is the professional Racket of Franco Stupaczuk, designed for a polyvalent and aggressive game. With 15K carbon, sandy finish, and medium-high balance, it maximizes power and control.
Manufacturer data
The spec sheet.
What Siux states about this edition, and what each value does on court. These are published claims, not measurements taken here.
Shape
Hybrid
Control
Power
Between a teardrop and a diamond: the sweet spot moves up, and so does the power.
Weight
Not stated
Light
Heavy
Not published for this edition.
Balance
Medium
Handling
Power
Even through the frame, favouring neither swing speed nor hitting weight.
Surface
Not stated
Flat
Spin
Not published for this edition.
Hardness
Medium
Soft
Hard
A middle core, between the comfort of a soft one and the speed of a hard one.
Where to buy
Available offers.
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Community data
The player view.
Ratings, collection history and reviews from verified players — together in one place.
Public ratings0player ratings
Collected by0player histories
Written reviews0player notes
Who plays it most
Prefers left0%
Prefers right0%
Still undecided0%
Average experienceNot enough data
■ Left 0%■ Right 0%■ Undecided 0%
Player notes
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