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Head to head

Dunlop M-Fil Tour 16 vs Gosen AK Pro 17

AK Pro 17 leads on 4 of 6 measurements. The widest gap is ball bite, where M-Fil Tour 16 is 22 percentile points ahead. Every figure is a testing-machine result at a fixed reference tension.

Measured, side by side

Dunlop

M-Fil Tour 16

Nylon · 16 ga

Gosen

AK Pro 17

Nylon · 17 ga

Stiffness lower = softer, kinder on the arm
15925th pct
16229th pct
Tension loss lower = stays where you strung it
2330th pct
2120th pct
Energy return higher = livelier, more free power
8955th pct
9168th pct
Spin potential higher = more spin off the string bed
4.337th pct
4.440th pct
Ball bite higher = grabs the ball harder
0.42541st pct
0.39319th pct
String friction lower = strings slide and snap back
0.10063rd pct
0.08944th 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 M-Fil Tour 16 at 52 lb

String AK Pro 17 at 50.8 lb 23.0 kg

Coming from AK Pro 17 at 52 lb

String M-Fil Tour 16 at 53.1 lb 24.1 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.

M-Fil Tour 16 mains / AK Pro 17 crosses

Stiffness26th pct · 1 measured
Tension loss27th pct · 1 measured
Energy return61st pct · 1 measured
Spin potential38th pct · 1 measured
Ball bite38th pct · 1 measured
String friction60th pct · 1 measured

AK Pro 17 mains / M-Fil Tour 16 crosses

Stiffness27th pct · 1 measured
Tension loss24th pct · 1 measured
Energy return63rd pct · 1 measured
Spin potential38th pct · 1 measured
Ball bite22nd pct · 1 measured
String friction48th 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.

M-Fil Tour 16

~31 hours of play

AK Pro 17

~34 hours of play

Both strings in full

Every published measurement
StringGaugePriceStiff lb/inLoss %Power %SpinBite COFFriction COF
Dunlop M-Fil Tour 16 Nylon16find15923894.30.4250.100
Gosen AK Pro 17 Nylon17find16221914.40.3930.089

Add a third string M-Fil Tour 16 in full AK Pro 17 in full