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Tecnifibre X-One Biphase 17 is Tecnifibre's flagship playability tennis string, and for good reason. With plenty of technology packed in for maximum power, feel and comfort, this string is even a great choice if you suffer from arm pain. Th...
Reviews
5.0
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X-One
Love that string!!
C
Christian · December 3, 2022
Tennis racket strings
Long time user. Great strings!
J
Jaroslaw · July 18, 2022
Great String
Nice playable string and it plays better after second time playing with it. Freshly strung racquet might not play as soft as you expect! I cannot talk about durability since I only played with it 4 times with an injured wrist. I use it on ProKennex Black Ace 300 at 45 lbs and my wrist feels ok.