Head to head
Gosen Polylon PolyBreak 18 (1.20) vs Poly Star Turbo 16L (1.25)
Polylon PolyBreak 18 (1.20) leads on 4 of 6 measurements. The widest gap is ball bite, where Turbo 16L (1.25) is 81 percentile points ahead. Every figure is a testing-machine result at a fixed reference tension.
Measured, side by side
Bars are percentile against all 791 strings, and the marked side is the one that measures better, which is not always the one you want. A firmer bed is worse for your elbow and better for your control, and no measurement knows which of those you came for.
Which one wins, by problem
Each string's standing on the site's rankings, out of every measured string in the database. This is where a comparison stops being arithmetic and starts being a decision.
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Polylon PolyBreak 18 (1.20)383rd
Turbo 16L (1.25)286th
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Polylon PolyBreak 18 (1.20)366th
Turbo 16L (1.25)429th
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Polylon PolyBreak 18 (1.20)438th
Turbo 16L (1.25)384th
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Polylon PolyBreak 18 (1.20)562nd
Turbo 16L (1.25)665th
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Polylon PolyBreak 18 (1.20)734th
Turbo 16L (1.25)784th
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Polylon PolyBreak 18 (1.20)267th
Turbo 16L (1.25)535th
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Polylon PolyBreak 18 (1.20)566th
Turbo 16L (1.25)662nd
Swapping between them: what tension?
Bed stiffness is published at one reference tension, so the only honest conversion is to scale it. These are starting points from 52 lb, not prescriptions. The calculator takes your own tension.
Coming from Polylon PolyBreak 18 (1.20) at 52 lb
String Turbo 16L (1.25) at 50.9 lb 23.1 kg
Coming from Turbo 16L (1.25) at 52 lb
String Polylon PolyBreak 18 (1.20) at 54.2 lb 24.6 kg
Hybrid: what if you used both?
Estimated, not measured. No hybrid combination has been tested as a bed. These figures are the two strings' own lab measurements weighted by how much of the bed each one actually is. Treat them as a guide to which way a pairing moves, never as lab data.
Polylon PolyBreak 18 (1.20) mains / Turbo 16L (1.25) crosses
Turbo 16L (1.25) mains / Polylon PolyBreak 18 (1.20) crosses
Which goes dead first?
Estimated from tension loss, which is the only thing the database measures about ageing. This is when the bed stops playing the way you strung it, not when the string breaks.
Polylon PolyBreak 18 (1.20)
~12 hours of play
Turbo 16L (1.25)
~10 hours of play
Both strings in full
| String | Gauge | Price | Stiff lb/in | Loss % | Power % | Spin | Bite COF | Friction COF |
|---|---|---|---|---|---|---|---|---|
| Gosen Polylon PolyBreak 18 (1.20) Polyester | 18 | find | 165 | 53 | 83 | 4.8 | 0.354 | 0.074 |
| Poly Star Turbo 16L (1.25) Polyester | 16L | find | 169 | 65 | 78 | 5.0 | 0.521 | 0.105 |
Add a third string Polylon PolyBreak 18 (1.20) in full Turbo 16L (1.25) in full