ELECTRA STUPA PRO ST4 2025

SIUX ELECTRA STUPA PRO ST4 2025

Dynamic power. Versatile precision.

The Siux Electra Stupa Pro ST4 2025, developed with Franco Stupaczuk, is designed for advanced and professional players looking for the perfect combination of power, control, and maneuverability. Built for an aggressive all-court style, it delivers explosive attacking performance while remaining versatile and stable in defense.

Its hybrid / teardrop shape and medium-high balance create a highly adaptable racket that transitions smoothly between defense and attack. The 15K carbon surface combined with an EVA Hard core provides a medium-hard, crisp feel with excellent ball output and precision on aggressive shots.

One of the major upgrades of the ST4 generation is the redesigned hole pattern, which improves the sweet spot and makes the racket more forgiving and stable than previous Electra models. Independent reviewers consistently highlight this improvement, noting that the racket maintains strong attacking capabilities while becoming easier to control during fast rallies.

The racket also features a rough sandy finish, enhancing spin generation and ball grip for viboras, bandejas, and slice shots. Its reinforced frame construction improves stability and reduces vibrations during powerful impacts.

Community discussions often describe the Electra ST4 Pro as one of the most balanced hybrid rackets available, appreciated for its combination of offensive power, maneuverability, and enlarged sweet spot. Some users also note that it feels slightly softer and more forgiving than the ST3 version.

Technical Characteristics

• Player Level: Advanced / Professional
• Player Type: Versatile / Aggressive Player
• Head Shape: Hybrid / Teardrop
• Weight: 355–375 g
• Balance: Medium-High
• Thickness: 38 mm
• Touch: Medium-Hard

Composition

• Frame: Carbon
• Surface: 15K Carbon
• Core: EVA Hard

Key Technologies

• 15K Carbon Faces – Excellent rigidity and power output
• EVA Hard Core – Crisp and precise response
• Revolution Frame Construction – Greater stability and reduced vibrations
• Rough Sandy Finish – Enhanced spin and ball grip
• Optimized Hole Pattern – Larger and more forgiving sweet spot

The Electra Stupa Pro ST4 2025 delivers an outstanding balance of explosive power, versatility, and control, making it an excellent choice for players who want a dynamic racket capable of performing at the highest level in every phase of the game.