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

Gosen

Polylon PolyBreak 18 (1.20)

Polyester · 18 ga

Poly Star

Turbo 16L (1.25)

Polyester · 16L ga

Stiffness lower = softer, kinder on the arm
16533rd pct
16937th pct
Tension loss lower = stays where you strung it
5393rd pct
65100th pct
Energy return higher = livelier, more free power
838th pct
781st pct
Spin potential higher = more spin off the string bed
4.851st pct
5.056th pct
Ball bite higher = grabs the ball harder
0.3543rd pct
0.52184th pct
String friction lower = strings slide and snap back
0.07412th pct
0.10570th pct

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.

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

Stiffness34th pct · 1 measured
Tension loss96th pct · 1 measured
Energy return4th pct · 1 measured
Spin potential53rd pct · 1 measured
Ball bite12th pct · 1 measured
String friction28th pct · 1 measured

Turbo 16L (1.25) mains / Polylon PolyBreak 18 (1.20) crosses

Stiffness35th pct · 1 measured
Tension loss97th pct · 1 measured
Energy return3rd pct · 1 measured
Spin potential55th pct · 1 measured
Ball bite76th pct · 1 measured
String friction60th pct · 1 measured

Open this in the hybrid builder

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

Every published measurement
StringGaugePriceStiff lb/inLoss %Power %SpinBite COFFriction COF
Gosen Polylon PolyBreak 18 (1.20) Polyester18find16553834.80.3540.074
Poly Star Turbo 16L (1.25) Polyester16Lfind16965785.00.5210.105

Add a third string Polylon PolyBreak 18 (1.20) in full Turbo 16L (1.25) in full