Head to head

Head Hawk 17 (1.25) vs Yonex Poly Tour Strike 16L (1.25)

Poly Tour Strike 16L (1.25) leads on 4 of 6 measurements. The widest gap is ball bite, where Poly Tour Strike 16L (1.25) is 55 percentile points ahead. Every figure is a testing-machine result at a fixed reference tension.

Measured, side by side

Head

Hawk 17 (1.25)

Polyester · 17 ga

Yonex

Poly Tour Strike 16L (1.25)

Polyester · 16L ga

Stiffness lower = softer, kinder on the arm
20573rd pct
20068th pct
Tension loss lower = stays where you strung it
3354th pct
2842nd pct
Energy return higher = livelier, more free power
8846th pct
8850th pct
Spin potential higher = more spin off the string bed
4.748th pct
4.645th pct
Ball bite higher = grabs the ball harder
0.3231st pct
0.45156th pct
String friction lower = strings slide and snap back
0.0694th pct
0.09759th 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 Hawk 17 (1.25) at 52 lb

String Poly Tour Strike 16L (1.25) at 53.3 lb 24.2 kg

Coming from Poly Tour Strike 16L (1.25) at 52 lb

String Hawk 17 (1.25) at 50.7 lb 23.0 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.

Hawk 17 (1.25) mains / Poly Tour Strike 16L (1.25) crosses

Stiffness70th pct · 1 measured
Tension loss50th pct · 1 measured
Energy return48th pct · 1 measured
Spin potential47th pct · 1 measured
Ball bite2nd pct · 1 measured
String friction16th pct · 1 measured

Poly Tour Strike 16L (1.25) mains / Hawk 17 (1.25) crosses

Stiffness70th pct · 1 measured
Tension loss48th pct · 1 measured
Energy return49th pct · 1 measured
Spin potential47th pct · 1 measured
Ball bite46th 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.

Hawk 17 (1.25)

~24 hours of play

Poly Tour Strike 16L (1.25)

~27 hours of play

Both strings in full

Every published measurement
StringGaugePriceStiff lb/inLoss %Power %SpinBite COFFriction COF
Head Hawk 17 (1.25) Polyester17$9.9920533884.70.3230.069
Yonex Poly Tour Strike 16L (1.25) Polyester16Lfind20028884.60.4510.097

Add a third string Hawk 17 (1.25) in full Poly Tour Strike 16L (1.25) in full