Head to head
Double AR Twice Dragon(1.30) vs Volkl Cyclone Tour 17 (1.25)
Twice Dragon(1.30) leads on 5 of 6 measurements. The widest gap is ball bite, where Twice Dragon(1.30) is 15 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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Twice Dragon(1.30)54th
Cyclone Tour 17 (1.25)140th
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Twice Dragon(1.30)400th
Cyclone Tour 17 (1.25)410th
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Twice Dragon(1.30)338th
Cyclone Tour 17 (1.25)347th
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Twice Dragon(1.30)581st
Cyclone Tour 17 (1.25)603rd
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Twice Dragon(1.30)714th
Cyclone Tour 17 (1.25)731st
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Twice Dragon(1.30)62nd
Cyclone Tour 17 (1.25)231st
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Twice Dragon(1.30)585th
Cyclone Tour 17 (1.25)612th
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 Twice Dragon(1.30) at 52 lb
String Cyclone Tour 17 (1.25) at 50.2 lb 22.8 kg
Coming from Cyclone Tour 17 (1.25) at 52 lb
String Twice Dragon(1.30) at 54.1 lb 24.5 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.
Twice Dragon(1.30) mains / Cyclone Tour 17 (1.25) crosses
Cyclone Tour 17 (1.25) mains / Twice Dragon(1.30) 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.
Twice Dragon(1.30)
~13 hours of play
Cyclone Tour 17 (1.25)
~12 hours of play
Both strings in full
| String | Gauge | Price | Stiff lb/in | Loss % | Power % | Spin | Bite COF | Friction COF |
|---|---|---|---|---|---|---|---|---|
| Double AR Twice Dragon(1.30) Polyester | — | find | 171 | 51 | 83 | 7.2 | 0.510 | 0.071 |
| Volkl Cyclone Tour 17 (1.25) Polyester | 17 | find | 171 | 53 | 83 | 6.1 | 0.472 | 0.078 |
Add a third string Twice Dragon(1.30) in full Cyclone Tour 17 (1.25) in full