Description
The Tecnifibre X-One Biphase Squash String represents the pinnacle of Tecnifibre’s string engineering — their most premium, most technologically loaded multifilament squash string. Every fiber, every coating, and every manufacturing step in this string exists to deliver one thing: natural gut-like playability that lasts significantly longer than traditional multifilaments. Cut from a professional reel, this set gives you enough string for one complete squash racket restring at 1.18mm (18g) gauge.
TECNIFIBRE’S FLAGSHIP SQUASH STRING TECHNOLOGY
Elastyl Fibers — 12% More Power
At the core of the Tecnifibre X-One Biphase Squash String are proprietary Elastyl fibers — engineered elastic filaments that store and release energy more efficiently than standard polyamide (PA) fibers used in regular multifilament strings. Independent testing confirms Elastyl fibers generate 12% more power compared to conventional PA construction. On the squash court, this translates to drives that carry extra pace to the back wall, volleys that punch harder, and serves that arrive with more zip — all without requiring you to swing harder.
H2C Fibers — High Heat Capacity for Tension Stability
String tension naturally drops over time, and once it drops significantly, your shots lose consistency. The H2C (High Heat Capacity) fibers in the X-One Biphase resist this tension loss by maintaining molecular stability even as the string heats up during extended rallies. The practical benefit is that your string bed feels the same in the fifth game as it did in the first — consistent power, consistent control, consistent response. Tournament players who need reliable performance through multiple matches in a single day will notice this difference immediately.
Trimerized PU — The Biphase Process
What gives this string its name is the patented Biphase manufacturing process. Tecnifibre applies Trimerized Polyurethane (PU) to the string through a two-phase chemical treatment using extreme temperature variations. This Trimerization bonds the PU coating at a molecular level to the nylon fibers, creating a protective shell that resists notching and surface wear far better than standard PU coatings. The result is a string that lasts 20% longer than comparable multifilaments while maintaining the soft, comfortable feel that makes multifilament strings so popular among serious players.
ON-COURT PERFORMANCE AND FEEL
Natural Gut-Like Playability
The Tecnifibre X-One Biphase Squash String is often described as the closest thing to natural gut in the synthetic string market. The combination of Elastyl power, H2C tension stability, and Trimerized PU comfort creates a string bed that responds with exceptional elasticity and touch. Drop shots feel delicate and precise. Drives feel loaded with energy. Boasts and nick shots respond with the kind of feedback that lets you know exactly where the ball is going. This level of feel is what separates a flagship multifilament squash string from standard alternatives.
Spin and Ball Bite
The 1.18mm gauge is thinner than typical 1.30mm squash strings, which means more string movement and better ball grip on contact. When you slice through the ball or apply cut, the thinner fibers dig into the rubber surface more effectively, generating spin that makes your drops die short and your crosscourts curve tighter. Players transitioning from the Tecnifibre 305 (which is known as a control string) will find the X-One Biphase offers noticeably more power while maintaining competitive spin levels.
PLAYED BY ELITE SQUASH PROFESSIONALS
Tour-Tested Performance
The Tecnifibre X-One Biphase Squash String has been the string of choice for Wael El Hindi — the legendary Egyptian squash player who reached World #3 and won multiple PSA titles. El Hindi’s aggressive, power-based playing style demanded a string that could deliver explosive pace while maintaining feel for delicate touch shots. His endorsement isn’t just marketing — it reflects the string’s ability to perform at the absolute highest level of competitive squash. Several other PSA tour professionals have also used the X-One Biphase in competition.
WHO SHOULD CHOOSE THE X-ONE BIPHASE
Ideal Player Profile
This string is built for intermediate to advanced players who want the best possible feel and power from a multifilament construction. It suits aggressive players who take full swings, hit hard drives, and need a string that rewards clean technique with extra pace. Club players in Indian cities like Mumbai, Delhi, Bengaluru, Chennai, and Hyderabad who play competitive leagues or regular club matches will appreciate the combination of high performance and extended durability.
If you currently play with the Tecnifibre 305 and want more power, or if you use the HEAD Reflex and want more sophisticated technology, the X-One Biphase is the natural upgrade. It also works perfectly with any brand of squash racket — Tecnifibre, HEAD, Dunlop, Prince, or Harrow.
STRINGING AND CARE GUIDELINES
Getting Optimal Performance
This Tecnifibre X-One Biphase Squash String is cut from a professional reel, providing enough string for one complete racket restring. Tecnifibre recommends a tension range between 10-13 kg (22-28 lbs) for squash, with a maximum tension of 18 kg (40 lbs). Lower tensions maximize the power and comfort characteristics, while higher tensions tighten control and improve shot precision. Most competitive players settle between 24-27 lbs for an ideal balance.
Professional stringing is recommended — an experienced stringer will ensure even tension distribution and proper knotting that preserves the string’s performance characteristics. Replace the string when you notice visible fraying, a significant drop in power, or when the string bed stops returning to position after contact. For regular players hitting 3-4 times per week, expect to restring every 4-8 weeks.
TECNIFIBRE X-ONE BIPHASE VS TECNIFIBRE 305
Choosing Between Tecnifibre’s Top Strings
The two most popular Tecnifibre squash strings are the 305 and the X-One Biphase, and each serves a different playing style. The Tecnifibre 305 (available in green and black) is the most popular string on the PSA World Tour — it excels at control, ball bite, and cutting effect, making it the preferred choice for players with a technically precise, slice-heavy game. The Tecnifibre X-One Biphase Squash String, on the other hand, prioritizes explosive power, arm comfort, and playability, making it the better choice for attacking players who hit hard and need a softer feel. The DNAMX sits between the two as an intermediate option. Choose based on whether you prioritize control (305) or power and comfort (X-One Biphase).
FREQUENTLY ASKED QUESTIONS
Q1. What makes the Tecnifibre X-One Biphase different from the Tecnifibre 305?
Ans. The Tecnifibre X-One Biphase Squash String focuses on power and comfort using Elastyl fibers and Trimerized PU technology, while the 305 prioritizes control and ball bite. The X-One Biphase generates 12% more power and offers a softer, more arm-friendly feel. The 305 is preferred for slice-heavy players, while the Biphase suits aggressive power hitters.
Q2. What tension should I string the X-One Biphase at for squash?
Ans. Tecnifibre recommends a tension range of 10-13 kg (22-28 lbs) for squash, with a maximum of 18 kg (40 lbs). For maximum power and comfort, string at 22-24 lbs. For tighter control and precision, go 26-28 lbs. Most competitive players find 25-26 lbs to be the ideal balance point.
Q3. How long does the Tecnifibre X-One Biphase last compared to regular strings?
Ans. Thanks to the patented Biphase Trimerization process, the Tecnifibre X-One Biphase Squash String lasts approximately 20% longer than standard multifilament strings. For regular club players hitting 3-4 times per week, expect 4-8 weeks of play before restringing is needed.
Q4. Is this string cut from a reel or a factory-sealed set?
Ans. This product is cut from a professional Tecnifibre reel. You receive the exact length needed for one complete squash racket restring. Cut-from-reel strings are identical in quality to factory-sealed sets — the only difference is packaging. Many professional stringers and clubs worldwide use reel-cut strings for their players.
Q5. Which professional squash players use the X-One Biphase?
Ans. The most notable player associated with the Tecnifibre X-One Biphase Squash String is Wael El Hindi, the former World #3 from Egypt known for his aggressive, power-based style. Several other PSA professionals have also used this string in competitive matches, validating its tour-level performance.
Q6. Can I use the Tecnifibre X-One Biphase on a HEAD or Dunlop squash racket?
Ans. Yes, the Tecnifibre X-One Biphase Squash String is compatible with all standard squash rackets regardless of brand. Whether you play with Tecnifibre, HEAD, Dunlop, Prince, Harrow, or any other brand, the 1.18mm gauge works with all standard squash racket string patterns and head sizes.
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