Head to head
Head Ultratour 17 vs Luxilon Big Banger Ace 18 (1.12)
They split the measurements 3–3. The widest gap is ball bite, where Big Banger Ace 18 (1.12) is 22 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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Ultratour 17519th
Big Banger Ace 18 (1.12)508th
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Ultratour 17669th
Big Banger Ace 18 (1.12)627th
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Ultratour 17191st
Big Banger Ace 18 (1.12)241st
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Ultratour 17703rd
Big Banger Ace 18 (1.12)639th
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Ultratour 17609th
Big Banger Ace 18 (1.12)631st
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Ultratour 17479th
Big Banger Ace 18 (1.12)607th
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Ultratour 17700th
Big Banger Ace 18 (1.12)653rd
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 Ultratour 17 at 52 lb
String Big Banger Ace 18 (1.12) at 53.6 lb 24.3 kg
Coming from Big Banger Ace 18 (1.12) at 52 lb
String Ultratour 17 at 50.8 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.
Ultratour 17 mains / Big Banger Ace 18 (1.12) crosses
Big Banger Ace 18 (1.12) mains / Ultratour 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.
Ultratour 17
~17 hours of play
Big Banger Ace 18 (1.12)
~16 hours of play
Both strings in full
| String | Gauge | Price | Stiff lb/in | Loss % | Power % | Spin | Bite COF | Friction COF |
|---|---|---|---|---|---|---|---|---|
| Head Ultratour 17 Polyester | 17 | find | 208 | 45 | 85 | 4.1 | 0.383 | 0.094 |
| Luxilon Big Banger Ace 18 (1.12) Polyester | 18 | find | 204 | 46 | 85 | 4.0 | 0.419 | 0.106 |
Add a third string Ultratour 17 in full Big Banger Ace 18 (1.12) in full