
Tecnifibre
X-One Biphase Tennis String Natural - 18
Reviewed byOrganicDiscount TeamUpdated 5 Jul 2026
Best price available
£22.95
Key features
- See our following blog posts
- Elastyl Fibers are used, giving 12% more power than the standard polyamide materials used in other synthetic strings
Product Overview
Tecnifibre X-One Biphase Tennis String Set in Natural is the ultimate synthetic string and provides the closest playability to natural gut of any synthetic string produced. Elastyl Fibers are used, giving 12% more power than the standard polyamide materials used in other synthetic strings. X-One Biphase features a unique technology that separates it from other strings in the Tecnifibre line, Fiber H2C, which involves a high temperature prestretching step to ensure greater tension maintenance.
Improving on their PU Inside technology, this string features Trimerized PU, allowing for even more comfort and touch for that natural gut like feel. Many years of research have led to the Biphase process, a production process that increases string durability by 20%, letting players experience the benefits of this string for even longer. The most advanced synthetic string on the market, X-One Biphase makes the playability of natural gut available in a synthetic alternative.

X-One Biphase gives players more power, comfort and feel. Construction: Multifilament polyamide Color: Natural Gauges: 18G / 1.18 mm | 17G / 1.24 mm | 16G / 1.28 mm | 15L / 1.32 mm Length: 40 ft / 12.2 m
Full Feature List
- Excellent feel for the ball -Comfortable on the arm and shoulder -Enhances power -Great energy return For more information on strings
- see our following blog posts: Tecnifibre €™s new Polyester String: The Ice Code Cometh 10 Best Multifilament Tennis Strings Today Need help selecting a string? Check out our Choosing The Right Tennis String guide for more assistance.
Pros & Cons
Pros
- In stock and ready to ship
- See our following blog posts
- Elastyl Fibers are used
Cons
- Currently sold by only one merchant — limited price competition
- No customer reviews yet
- Price history not yet established
Price Analysis
Fair Price
The current price is around the average. It's a reasonable time to buy.
Current Best
£22.95
Average Price
£22.95
Lowest Ever
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Highest Ever
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Compare Prices (1 merchant)
Compare prices for X-One Biphase Tennis String Natural - 18
| Merchant | Price | Shipping | Total | Status | |
|---|---|---|---|---|---|
Te Tennis Express Best Price | £22.95 | — | £22.95 | In Stock | Go to Store |
Price Alert
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Product Details
| Brand | Tecnifibre |
| Merchant | Tennis Express |
| GTIN | 3490150179300 |
| MPN | 392937 |
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