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    Product Specifications

    Gauge

    17 gauge / 1.24mm

    Length

    40 feet / 12.2 meters

    Item #

    010939

    Style #

    TFGX01NA

    Tecnifibre X-One Biphase 17

    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. The 17 gauge is even thinner for increased feel on those touch shots.

    • Biphase process offers 20% increased durability.
    • Multifilament Synthetic string.
    average rating 4.8 out of 5
    Based on 8 reviews
    • 5 Stars
      6 Reviews
    • 4 Stars
      2 Reviews
    • 3 Stars
      0 Reviews
    • 2 Stars
      0 Reviews
    • 1 Star
      0 Reviews
    100% of reviewers would recommend this product to a friend
    8 Reviews
    Rated 5 out of 5
    Review posted

    Finally I found the string I want

    Now It is my favorite multifillement string .

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    Rated 5 out of 5
    Review posted

    Easy on the arm. I would buy again. Like the red string!

    Practice, match play

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    Rated 5 out of 5
    Review posted

    Buying it again! Awesome string

    I've been playing since I was 7-8 yrs old on and off. Frankly, I only used Technifibre once when I picked up the sport again for high school and after a 3 yr hiatus, and I hated the strings. Never tried them since since I was big fan of Prince in the mid-80s. Fast forward, I've had difficulty with some synthetic gut I put on my Six.One BLX 90 and some poly's. I read the reviews on X-one Biphase and they seem great. I was desperate trying to find strings that give me the feel. I just got off the court before writing this review because they are that AWESOME! I strung 2 racquets - one with the X-one and the other with Solinco Outlast as part of a holabird purchase. I couldn't hit the Solinco Outlast even if it's a softer poly after warming up and playing a set on the X-one. My strokes felt they were coming back from 2 yrs ago and prior, in 2007 or so (another 5 yr hiatus). The feedback is great and frankly, to make the synthetics I used work I had to use a dampener. I never had a use for dampeners all my life but I had to the last year and this year. The power is deceptive in that the strings make me focus more on my old stroke of hitting with more topspin vs. just flat. Prior, I'd barely clear the net sometimes. And for the serve, I had a problem with the old strings even making it over the net vs. now, it's flying about 1-ft off the service line just trying to spin it in. Just an adjustment I have to make. Otherwise, these are great strings and best I've put since…

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    Rated 5 out of 5
    Review posted

    Raise My Game!

    I bought a new racquet last year and had a polyester string on it. After playing with it for two months, I develoed pain in my hitting arm. It had never happened to me before. My stringer said that is characteristic of polyester strings. I researched on more comfortable multifilament strings. I decided to try the Tecnifibre X-One Biphase 17 gauge strings. Immediately I found the strings to be comfortable and shock-free. Not only that but I got tremendous power and control. I could smack balls to the corners on the baseline as well as dink drop shots. It felt great.

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    Rated 5 out of 5
    Review posted

    love this string

    soft yet very powerful. Favorite strings, but not durable

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