Head to head
Prince Tour XC 17L vs Topspin Cyber Delta 17 (1.26)
They split the measurements 3–3. The widest gap is string friction, where Tour XC 17L is 37 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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Tour XC 17L181st
Cyber Delta 17 (1.26)198th
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Tour XC 17L533rd
Cyber Delta 17 (1.26)498th
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Tour XC 17L243rd
Cyber Delta 17 (1.26)276th
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Tour XC 17L436th
Cyber Delta 17 (1.26)421st
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Tour XC 17L477th
Cyber Delta 17 (1.26)450th
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Tour XC 17L238th
Cyber Delta 17 (1.26)292nd
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Tour XC 17L459th
Cyber Delta 17 (1.26)434th
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 Tour XC 17L at 52 lb
String Cyber Delta 17 (1.26) at 53.3 lb 24.2 kg
Coming from Cyber Delta 17 (1.26) at 52 lb
String Tour XC 17L 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.
Tour XC 17L mains / Cyber Delta 17 (1.26) crosses
Cyber Delta 17 (1.26) mains / Tour XC 17L 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.
Tour XC 17L
~21 hours of play
Cyber Delta 17 (1.26)
~23 hours of play
Both strings in full
| String | Gauge | Price | Stiff lb/in | Loss % | Power % | Spin | Bite COF | Friction COF |
|---|---|---|---|---|---|---|---|---|
| Prince Tour XC 17L Polyester | 17L | find | 206 | 37 | 88 | 5.9 | 0.428 | 0.073 |
| Topspin Cyber Delta 17 (1.26) Polyester | 17 | find | 201 | 35 | 88 | 5.6 | 0.504 | 0.090 |
Add a third string Tour XC 17L in full Cyber Delta 17 (1.26) in full