Tecnifibre Tennis String X-One Biphase - Natural - 1.24 - Multifilament

X-One Biphase is Tecnifibre’s highest-performing multifilament string, designed to excel in playability, durability, and tension maintenance. It includes a built-in wear indicator that shows clear fraying at the impact zone, helping players restring before breakage.

As the leading brand in multifilament technology, Tecnifibre produces this premium string in France using advanced fibres and treatments that deliver exceptional power, comfort, and long-lasting performance.

Featuring Elastyl and H²C fibres for maximum elasticity and strength, along with the exclusive Biphase “pre-stretch” process, X-One Biphase offers enhanced durability and improved spin generation.

A worldwide best seller, it delivers natural-gut-like performance without the fragility.

Key Features

• Wear indicator for safe and timely restringing
• Outstanding power, comfort, and long-term performance
• Not recommended for heavy string breakers
• Made in France
• Natural gut–like feel and response

Specifications

• Type of String: Multifilament
• String Range: X-ONE BIPHASE
• Packaging: Set 12m
• Color: Natural
• Gauge: 1.24