Head to head
Topspin Cyber Blue 17 vs Volkl V-Pro 17
Cyber Blue 17 leads on 3 of 6 measurements. The widest gap is string friction, where V-Pro 17 is 14 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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Cyber Blue 17287th
V-Pro 17291st
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Cyber Blue 17472nd
V-Pro 17510th
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Cyber Blue 17318th
V-Pro 17308th
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Cyber Blue 17612th
V-Pro 17572nd
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Cyber Blue 17643rd
V-Pro 17656th
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Cyber Blue 17369th
V-Pro 17337th
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Cyber Blue 17600th
V-Pro 17584th
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 Cyber Blue 17 at 52 lb
String V-Pro 17 at 49.2 lb 22.3 kg
Coming from V-Pro 17 at 52 lb
String Cyber Blue 17 at 58.1 lb 26.4 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.
Cyber Blue 17 mains / V-Pro 17 crosses
V-Pro 17 mains / Cyber Blue 17 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.
Cyber Blue 17
~16 hours of play
V-Pro 17
~15 hours of play
Both strings in full
| String | Gauge | Price | Stiff lb/in | Loss % | Power % | Spin | Bite COF | Friction COF |
|---|---|---|---|---|---|---|---|---|
| Topspin Cyber Blue 17 Polyester | 17 | find | 184 | 46 | 84 | 5.1 | 0.457 | 0.090 |
| Volkl V-Pro 17 Polyester | 17 | $8.99 | 188 | 48 | 85 | 5.1 | 0.432 | 0.084 |