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Tecnifibre X-One Biphase Natural String Reel - 660

Tecnifibre X-One Biphase Natural String Reel - 660

The Pinnacle of Power and Control 🎾

Regular price $219.99 USD
Regular price Sale price $219.99 USD
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About this item


Tecnifibre's X-One Biphase Natural String Reel sets a new standard in tennis strings. Made in France, this 660' reel is crafted from a blend of polyamide, polyurethane, and silicone finish, and is specifically designed for superior playability, durability, and string integrity. This high-performance string is not recommended for heavy string breakers but is perfect for those who seek the best of both worlds: power and control.

Product Highlights:

  • Triple-Criteria Excellence: Unmatched in playability, durability, and integrity among its range.
  • Wear Indicator: Unique feature that signals when the string needs to be replaced, increasing its lifespan.
  • Made in France: A testament to quality, produced in France with cutting-edge multifilament technology.
  • PU 400 Elasticity: 400% elasticity for exceptional comfort and dynamic performance.
  • H²C and Elastyl® Fibres: Advanced fiber technology for enhanced power and tensile strength.
  • Biphase Process: Exclusive pre-stretch process for improved durability and spin.


  • Main Materials: Polyamide, polyurethane, silicone finish.
  • String Integrity: Unique wear indicator for timely string replacement.
  • Elasticity: PU 400 for 400% elasticity, Elastyl® fibres for +12% elasticity, H²C Fibres for high tensile strength.
  • Processing: Biphase process for enhanced spin and durability.
  • Packaging: Bobine 200m

Why Choose Tecnifibre X-One Biphase Natural String Reel?

  1. Advanced Material Composition: Crafted with Polyamide, polyurethane, and silicone finish for a balance of power and comfort.
  2. Innovative Wear Indicator: Helps to optimize the string’s lifespan by alerting the player when it's time for a replacement.
  3. Superior Elasticity: Uses cutting-edge PU 400 and Elastyl® technologies for incredible responsiveness and dynamic performance.
  4. High-Temperature Tolerance: H²C Fibres ensure better tensile strength, adding to the string’s durability.
  5. Made in France: Guarantees a high standard of quality and performance.

Shipping to all the United States

We are pleased to announce that shipping is completely free of charge throughout the United States. Please allow 1-2 days for us to prepare your order. Once it leaves our warehouse, you can expect to receive your package within 3-7 business days. We are committed to getting your items to you quickly and efficiently. For more information see our Shipping Policy.