Siux Electra ST3 Junior vs Siux Electra ST5 Pro Shadow Red 2026 Franco Stupaczuk

“The Siux Electra ST3 Junior is a lightweight, round-shaped racket designed to give young players manageable control and forgiveness as they develop technique, but it lacks the refined construction quality and performance ceiling of leading junior offerings from Head or Babolat. The round shape provides a high sweet spot and decent touch, making it approachable for beginners transitioning from informal play to structured training. At its price point, parents can find better-specified junior rackets that offer more durable foam cores and stronger brand support networks, making value a genuine concern.”

“Franco Stupaczuk's Shadow Red ST5 is built to attack: power 90 with control 78 is a proper first-strike profile, and the confirmed even balance at 365 g explains why it feels quicker between shots than its hitting power implies. Blocks and counters stay manageable, then the same frame turns a short lob into a finished point. The firm side is unavoidable: comfort 67 and tolerance 66 mean mishits are felt and punished. Beyond balance and weight, full spec for this colourway is unconfirmed, so try before you buy. For aggressive all-court players it is a convincing signature frame.”

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