Yonex Polytour Fire 125 Tennis String , Black

The Yonex POLYTOUR FIRE in Black is a high-performance co-polyester monofilament designed for players who want a "slicker" stringbed to maximize snapback and ball speed. Unlike the textured or shaped strings in the Yonex lineup, POLYTOUR FIRE is round, focusing on linear power and a predictable response.

Performance Profile

1. Snapback & Spin (High): Though round, this string uses SIF Technology (Silicone oil Infused Filament). This reduces string-to-string friction, allowing the main strings to slide and snap back with significant force, generating heavy spin.
2. Power (Above Average): Compared to other firm polyesters, POLYTOUR FIRE offers a bit more energy return, making it one of the "faster" strings in the POLYTOUR family.
3. Control (Surgical): The round profile provides a very consistent launch angle. There are no "edges" to catch the ball differently on varied swings, offering high levels of precision on full, aggressive strokes.
4. Feel (Firm & Dampened): It has a stiff, competitive feel but is integrated with HR Elastomer to absorb harsh vibrations, making it surprisingly comfortable for a high-performance poly.
5. Tension Maintenance: It is recognized for holding its tension and playability longer than standard polyesters, preventing that "baggy" feeling after a few hours of play.

Best Suited For

1. Aggressive Hitters: Players with long, fast swings who want to stay aggressive without the ball flying long.
2. Flat & Drive Hitters: Because of the consistent round shape, it is ideal for players who hit through the court but still want the "snapback" spin for safety.
3. Intermediate to Advanced Players: Those who have the swing speed to benefit from a firm, low-powered co-poly.
4. Players Seeking Stealth Aesthetics: The Black version offers a more muted, professional look compared to the traditional "Fire Red" and tends to feel slightly more dampened.

Key Difference (Black vs. Red)

The Black version of POLYTOUR FIRE is technically identical in construction to the Red, but players often report that the black pigment creates a slightly more "solid" and less "lively" feel. This makes it an excellent choice if you found the original Red version a bit too "springy" or if you prefer a more understated look for your racquet.

Features

• Color: Black.
• Gauge: 16L (1.25 mm).
• Length: 40 ft.
• Origin: Made in Japan.
• Shape: Round.
• Material: Co-polyester Monofilament.
• Technology: SIF (Silicone oil Infused Filament) & HR Elastomer.