Skip to content
  • Facebook
  • X (Twitter)
  • Instagram
  • YouTube

Free Shipping for Australia Over $49.95

Free Shipping to Australia and New Zealand for Order Over $49.95

Advanced feature - Compare Racquets 🆚 side by side !

Advanced feature - Compare Racquets 🆚 side by side !

Need Help Call ☎️ 1800STURDY

Need Help Call ☎️ 1800STURDY

  • Tennis
  • Pickleball
  • Special Offer
  • Demo Program
  • Cricket
  • Blogs
  • Gift Cards
Login
  • Facebook
  • X (Twitter)
  • Instagram
  • YouTube
Search
Sturdy Racquets
  • TennisTennis
  • PickleballPickleball
  • Special OfferSpecial Offer
    • Tennis Gear

    • Pickleball Gear

    • Clearance

  • Demo ProgramDemo Program
  • CricketCricket
    • English Willow Bats

    • Kashmiri Willow Bats

    • Batting Gloves

    • Batting Pads

    • Kitbags

    • Helmets

    • Rubber & Steel Shoes

  • BlogsBlogs
  • Gift CardsGift Cards
Search Login Cart 0
Search
Home Search Shop 0 Cart
Account
Tecnifibre Tennis String X-One Biphase - Natural - 1.3 - Multifilament

tecnifibre logo

Tecnifibre Tennis String X-One Biphase - Natural - 1.3 - Multifilament

$39.95 AUD

3490150179324

5.0

75 reviews 75 total reviews

Have you seen it cheaper? Price Match Now
 
 
or 4 interest-free payments of $9.99 with or Zip Pay
Available for Click & Collect - In-Store Pickup
D 535 Geelong Road, Brooklyn VIC 3012
Ready for pickup the same day
Price Match
Guaranteed
Fast & Free Shipping
Orders Over $49.95
30 Days
Return
Click & Collect
Ready in 2 Hours
Same Day Dispatch
12:00 PM Cutoff
Description

X-One Biphase is Tecnifibre's top-performing multifilament string, engineered to deliver maximum playability, long-lasting durability, and excellent tension integrity. A built-in wear indicator shows clear fraying at the ball impact point, allowing players to restring before full breakage.

As the world leader in multifilament technology, Tecnifibre manufactures this string in France using advanced materials and processes that provide exceptional power, comfort, and consistent performance over time. With Elastyl and H2C fibres for superior elasticity and strength, plus the unique Biphase pre-stretch treatment, this string offers enhanced durability, better spin potential, and a feel close to natural gut without its weaknesses.

A global best seller, X-One Biphase is ideal for players seeking premium comfort, powerful response, and high-level performance.

Specifications
Key Features
  • Wear indicator for timely restringing
  • Exceptional power, comfort, and longevity
  • Not recommended for heavy string breakers
  • Made in France
  • Natural-gut-like performance without fragility
Delivery & Shipping
Fast dispatch Fast Dispatch
Orders are dispatched within 1 business day. You’ll receive a tracking link by email once your order is on the way.
Australia Australia
•
Standard Shipping: FREE over A$49.95; otherwise A$9.99.
Estimated delivery: 2–6 business days
•
Express Shipping: A$39
Estimated delivery: 1–3 business days
New Zealand New Zealand
•
Standard Shipping: FREE over NZ$59.95; otherwise NZ$17.99.
Estimated delivery: 4–7 business days
•
Express Shipping: NZ$44.99
Estimated delivery: 2–5 business days
Racquet stringing Stringing Requests
•
Please allow one additional business day for orders requiring stringing.
Important information Important Information
•
We aim to dispatch orders within 1 business day. Delivery times are estimates and depend on Australia Post or the relevant postal provider.
•
Bulky items, including packages longer than 1.5 metres on any side, may incur an additional shipping charge. We’ll contact you before dispatch if additional freight charges apply.
Full Shipping Policy →
Frequently Asked Questions

Who is the Tecnifibre X-One Biphase best suited for?

Multifilament strings are the go-to for players who prioritise arm-friendliness, comfort and a soft feel - especially players with tennis elbow, older players and flat-ball hitters. They play closest to natural gut at a fraction of the price.

What does the 1.3 mm gauge mean?

The 1.3 mm indicates the string's thickness. This is a thicker gauge, which trades a little feel for extra durability and tension stability.

What tension should I string it at?

The recommended tension range is 53-62 lbs (24-28 kg). Multifilaments and gut hold tension beautifully across a wide range - the higher end still stays comfortable.

How long will this string last?

Expect this string to last most players 20-30 hours of play, or around 1-2 months of regular use. Restring when you notice the stringbed going dead or losing tension.

Share:

  • Share on Facebook
  • Share on X
  • Pin on Pinterest
  • Share on WhatsApp
Share
Share
  • Facebook Share on Facebook
  • X (Twitter) Share on X
  • Pinterest Pin on Pinterest
  • WhatsApp Share on WhatsApp
Tecnifibre Tennis String X-One Biphase - Natural - 1.3 - Multifilament

Tecnifibre Tennis String X-One Biphase - Natural - 1.3 - Multifilament

TennisString-1Set / Tennis String - Natural
$39.95 AUD
Need help?

If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.

  • We use Best Australia Post

    Australian Shipping Cost:

    • $9.99 flat rate - Orders below $49.95
    • Free shipping - Orders $49.95 or more
    • $39.9 Flat rate - Express shipping

    Overseas Shipping Cost:

    • Calculated at checkout based on item in cart
  • Store Timing

    D 535 Geelong Rd, Brooklyn, VIC 3012

    • Mon to Fri : 10 - 6 pm
    • Sat & Sun : 10 - 3 pm
  • Customer Support

    • It’s not actually free we just price it into the products.
    • +61 3 9314 9365
    • hello@sturdyracquets.com.au
    • 535 Geelong Rd, Brooklyn VIC 3012, Australia.

Customer service

Exceptional customer service is part of the value you pay for, not an add-on.

Fast Free Shipping

Free Shipping to Australia and New-Zealand for Order Over $49.95

Shop with Confidence

Return and Refund Policy

Contact Information

Sturdy Racquets

ABN: 66 689 432 853

+61 3 9314 9365
hello@sturdyracquets.com.au

D 535 Geelong Road, Brooklyn VIC 3012

Avoid Unforced Errors- Join the community for updates and exclusive offers

Quick links

  • About Us
  • Shipping Policy
  • Return and Refund Policy
  • Terms of Service
  • Contact Us
  • Affiliation Program - Partner with Us
  • Demo Program
  • Shop By Collections
  • FAQ
  • Facebook
  • X (Twitter)
  • Instagram
  • YouTube
© 2026 Sturdy Racquets. Powered by Shopify
  • Privacy policy
  • Contact information
  • Terms of service
  • Refund policy
  • Shipping policy
  • American Express
  • Apple Pay
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Union Pay
  • Visa
  • Choosing a selection results in a full page refresh.
  • Opens in a new window.