Head to head
Babolat SG SpiralTek 16 vs Babolat Xcel Power 16
SG SpiralTek 16 leads on 4 of 6 measurements. The widest gap is string friction, where SG SpiralTek 16 is 28 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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SG SpiralTek 16518th
Xcel Power 16550th
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SG SpiralTek 16170th
Xcel Power 16174th
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SG SpiralTek 16593rd
Xcel Power 16608th
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SG SpiralTek 16188th
Xcel Power 16145th
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SG SpiralTek 1652nd
Xcel Power 16105th
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SG SpiralTek 16446th
Xcel Power 16477th
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SG SpiralTek 16156th
Xcel Power 16141st
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 SG SpiralTek 16 at 52 lb
String Xcel Power 16 at 50.5 lb 22.9 kg
Coming from Xcel Power 16 at 52 lb
String SG SpiralTek 16 at 53.3 lb 24.2 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.
SG SpiralTek 16 mains / Xcel Power 16 crosses
Xcel Power 16 mains / SG SpiralTek 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.
SG SpiralTek 16
~38 hours of play
Xcel Power 16
~36 hours of play
Both strings in full
| String | Gauge | Price | Stiff lb/in | Loss % | Power % | Spin | Bite COF | Friction COF |
|---|---|---|---|---|---|---|---|---|
| Babolat SG SpiralTek 16 Nylon | 16 | find | 162 | 15 | 93 | 4.1 | 0.370 | 0.090 |
| Babolat Xcel Power 16 Nylon | 16 | find | 162 | 19 | 93 | 3.8 | 0.413 | 0.109 |
Add a third string SG SpiralTek 16 in full Xcel Power 16 in full