The Tecnifibre TFight 315 Isoflex is a advanced-level racquet with a stiffness rating of 64 RA. With an open 16x19 pattern this frame is versatile, letting strings snap back freely for extra topspin. Our picks lean toward feel, control, and feedback for advanced technique.
Suggested tension: 46–58 lb (strung lower than label)
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Luxilon
Suggested tension: 46–58 lb (strung lower than label)
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Tecnifibre
Suggested tension: 48–60 lb
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Solinco
Suggested tension: 46–58 lb (strung lower than label)
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Luxilon
Suggested tension: 46–58 lb (strung lower than label)
Amazon
Check price
Affiliate link — we may earn a commission at no extra cost to you. Learn more.
Solinco
Suggested tension: 46–58 lb (strung lower than label)
Amazon
Check price
Affiliate link — we may earn a commission at no extra cost to you. Learn more.
Manufacturer range
48–60 lb
Never exceed this
Polyester strings
45–57 lb
String 3–5 lb lower for polys
Multi / Gut / Syn Gut
48–60 lb
Full range — go by feel
General guidance only — not professional advice. Tension preference is personal and varies by playing style. Always stay within the manufacturer's recommended range.