Tecnifibre X-One Biphase

The 18g gauge is a thinner string, which provides increased ball bite and spin potential compared to thicker gauges. While it offers superior feel and responsiveness, it may wear out faster than a 16g or 17g string.

The dual-phase technology is designed to mimic the performance of natural gut. It balances elasticity and tension stability, resulting in a soft, comfortable feel that absorbs shock while maintaining power.

Because this is an 18g gauge string, it is thinner and may not be the best choice for heavy topspin players who break strings often. If durability is your primary concern, you might consider a thicker gauge or a polyester-based string.

The X-One Biphase performs well across a standard tension range, but it is particularly effective when strung at your racquet's recommended mid-range tension. Because of its elasticity, it holds tension well, so you don't need to over-compensate during the stringing process.

Yes, many players use the X-One Biphase in the crosses to soften the feel of a stiffer polyester main string. This combination provides a blend of control and comfort that is popular among competitive players.