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Head to head

Gosen G-Tour 16 (1.30) vs Yonex Poly Tour Pro 17 (1.20)

G-Tour 16 (1.30) leads on 4 of 6 measurements. The widest gap is stiffness, where G-Tour 16 (1.30) is 5 percentile points ahead. Every figure is a testing-machine result at a fixed reference tension.

Measured, side by side

Gosen

G-Tour 16 (1.30)

Polyester · 16 ga

Yonex

Poly Tour Pro 17 (1.20)

Polyester · 17 ga

Stiffness lower = softer, kinder on the arm
18451st pct
18956th pct
Tension loss lower = stays where you strung it
3150th pct
3355th pct
Energy return higher = livelier, more free power
8735th pct
8737th pct
Spin potential higher = more spin off the string bed
5.364th pct
5.262nd pct
Ball bite higher = grabs the ball harder
0.49475th pct
0.48170th pct
String friction lower = strings slide and snap back
0.09353rd pct
0.09353rd 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 G-Tour 16 (1.30) at 52 lb

String Poly Tour Pro 17 (1.20) at 50.7 lb 23.0 kg

Coming from Poly Tour Pro 17 (1.20) at 52 lb

String G-Tour 16 (1.30) at 53.3 lb 24.2 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.

G-Tour 16 (1.30) mains / Poly Tour Pro 17 (1.20) crosses

Stiffness53rd pct · 1 measured
Tension loss51st pct · 1 measured
Energy return36th pct · 1 measured
Spin potential63rd pct · 1 measured
Ball bite75th pct · 1 measured
String friction53rd pct · 1 measured

Poly Tour Pro 17 (1.20) mains / G-Tour 16 (1.30) crosses

Stiffness54th pct · 1 measured
Tension loss52nd pct · 1 measured
Energy return36th pct · 1 measured
Spin potential63rd pct · 1 measured
Ball bite71st pct · 1 measured
String friction53rd 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.

G-Tour 16 (1.30)

~25 hours of play

Poly Tour Pro 17 (1.20)

~24 hours of play

Both strings in full

Every published measurement
StringGaugePriceStiff lb/inLoss %Power %SpinBite COFFriction COF
Gosen G-Tour 16 (1.30) Polyester16find18431875.30.4940.093
Yonex Poly Tour Pro 17 (1.20) Polyester17find18933875.20.4810.093

Add a third string G-Tour 16 (1.30) in full Poly Tour Pro 17 (1.20) in full