Head to head
Tecnifibre XR3 16 vs Volkl Power-Fiber II 16
Power-Fiber II 16 leads on 4 of 6 measurements. The widest gap is ball bite, where XR3 16 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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XR3 16599th
Power-Fiber II 16638th
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XR3 16214th
Power-Fiber II 16177th
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XR3 16589th
Power-Fiber II 16623rd
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XR3 16237th
Power-Fiber II 16206th
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XR3 16173rd
Power-Fiber II 16177th
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XR3 16666th
Power-Fiber II 16612th
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XR3 16231st
Power-Fiber II 16193rd
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 XR3 16 at 52 lb
String Power-Fiber II 16 at 55.6 lb 25.2 kg
Coming from Power-Fiber II 16 at 52 lb
String XR3 16 at 48.9 lb 22.2 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.
XR3 16 mains / Power-Fiber II 16 crosses
Power-Fiber II 16 mains / XR3 16 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.
XR3 16
~34 hours of play
Power-Fiber II 16
~34 hours of play
Both strings in full
| String | Gauge | Price | Stiff lb/in | Loss % | Power % | Spin | Bite COF | Friction COF |
|---|---|---|---|---|---|---|---|---|
| Tecnifibre XR3 16 Nylon/Polyurethane | 16 | find | 163 | 21 | 92 | 2.9 | 0.465 | 0.161 |
| Volkl Power-Fiber II 16 Nylon | 16 | $14.99 | 159 | 21 | 92 | 3.2 | 0.405 | 0.126 |