Head to head
Kirschbaum Xplosive Speed 1.25 vs Prince Tour XP 17 (1.25)
They split the measurements 3–3. The widest gap is ball bite, where Xplosive Speed 1.25 is 22 percentile points ahead. Every figure is a testing-machine result at a fixed reference tension.
Measured, side by side
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.
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Xplosive Speed 1.2563rd
Tour XP 17 (1.25)91st
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Xplosive Speed 1.25404th
Tour XP 17 (1.25)406th
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Xplosive Speed 1.25330th
Tour XP 17 (1.25)320th
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Xplosive Speed 1.25448th
Tour XP 17 (1.25)443rd
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Xplosive Speed 1.25539th
Tour XP 17 (1.25)482nd
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Xplosive Speed 1.25324th
Tour XP 17 (1.25)109th
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Xplosive Speed 1.25456th
Tour XP 17 (1.25)432nd
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 Xplosive Speed 1.25 at 52 lb
String Tour XP 17 (1.25) at 51.0 lb 23.1 kg
Coming from Tour XP 17 (1.25) at 52 lb
String Xplosive Speed 1.25 at 53.0 lb 24.0 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.
Xplosive Speed 1.25 mains / Tour XP 17 (1.25) crosses
Tour XP 17 (1.25) mains / Xplosive Speed 1.25 crosses
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.
Xplosive Speed 1.25
~19 hours of play
Tour XP 17 (1.25)
~22 hours of play
Both strings in full
| String | Gauge | Price | Stiff lb/in | Loss % | Power % | Spin | Bite COF | Friction COF |
|---|---|---|---|---|---|---|---|---|
| Kirschbaum Xplosive Speed 1.25 Polyester | — | find | 186 | 41 | 87 | 7.1 | 0.585 | 0.082 |
| Prince Tour XP 17 (1.25) Polyester | 17 | find | 189 | 36 | 87 | 6.7 | 0.486 | 0.073 |
Add a third string Xplosive Speed 1.25 in full Tour XP 17 (1.25) in full