StringSpec
String finder

Browse all 791

Head to head

Dunlop Explosive 17 (1.26) vs Yonex Poly Tour Pro 17 (1.20)

They split the measurements 3–3. The widest gap is ball bite, where Poly Tour Pro 17 (1.20) is 22 percentile points ahead. Every figure is a testing-machine result at a fixed reference tension.

Measured, side by side

Dunlop

Explosive 17 (1.26)

Polyester · 17 ga

Yonex

Poly Tour Pro 17 (1.20)

Polyester · 17 ga

Stiffness lower = softer, kinder on the arm
19259th pct
18956th pct
Tension loss lower = stays where you strung it
3252nd pct
3355th pct
Energy return higher = livelier, more free power
8739th pct
8737th pct
Spin potential higher = more spin off the string bed
5.159th pct
5.262nd pct
Ball bite higher = grabs the ball harder
0.43648th pct
0.48170th pct
String friction lower = strings slide and snap back
0.08637th 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 Explosive 17 (1.26) at 52 lb

String Poly Tour Pro 17 (1.20) at 52.9 lb 24.0 kg

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

String Explosive 17 (1.26) at 51.1 lb 23.2 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.

Explosive 17 (1.26) mains / Poly Tour Pro 17 (1.20) crosses

Stiffness58th pct · 1 measured
Tension loss53rd pct · 1 measured
Energy return39th pct · 1 measured
Spin potential61st pct · 1 measured
Ball bite51st pct · 1 measured
String friction41st pct · 1 measured

Poly Tour Pro 17 (1.20) mains / Explosive 17 (1.26) crosses

Stiffness57th pct · 1 measured
Tension loss54th pct · 1 measured
Energy return39th pct · 1 measured
Spin potential61st pct · 1 measured
Ball bite67th 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.

Explosive 17 (1.26)

~24 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
Dunlop Explosive 17 (1.26) Polyester17find19232875.10.4360.086
Yonex Poly Tour Pro 17 (1.20) Polyester17find18933875.20.4810.093

Add a third string Explosive 17 (1.26) in full Poly Tour Pro 17 (1.20) in full