Adidas Kardex Attl Glass Fiber vs Siux Electra ST5 Pro Shadow Red 2026 Franco Stupaczuk
Head-to-head on PRR scores, specs, and live prices — independently tested with the same methodology. Updated daily.
Siux Electra ST5 Pro Shadow Red 2026 Franco Stupaczuk wins by 21 points
Siux Electra ST5 Pro Shadow Red 2026 Franco Stupaczuk scores 91/100 against 70/100 for the Adidas Kardex Attl Glass Fiber. Its biggest edge is power (+16). On price, the Adidas Kardex Attl Glass Fiber is currently €108 cheaper.
“The Kardex Attl Glass Fiber Black is adidas's plainest budget attacker: an EVA Performance core under a fibreglass face producing power 74 with fair-to-firm terms (comfort 67, tolerance 66) and honest handling (66). Weight documentation is incomplete. Value 72 sits behind the brand's own Drive and Neuvortx offers, which is the review: the Kardex is the same essential frame with less compelling arithmetic. The carousel rule applies within the trefoil as within Dunlop: one budget racket, several names, buy the cheapest documented specimen.”
“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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