Head to head

Dunlop DNA 17 (1.22) vs Dunlop Hexy Fiber 17

They split the measurements 3–3. The widest gap is spin potential, where DNA 17 (1.22) is 9 percentile points ahead. Every figure is a testing-machine result at a fixed reference tension.

Measured, side by side

Dunlop

DNA 17 (1.22)

Nylon · 17 ga

Dunlop

Hexy Fiber 17

Nylon · 17 ga

Stiffness lower = softer, kinder on the arm
1458th pct
1447th pct
Tension loss lower = stays where you strung it
2843rd pct
2534th pct
Energy return higher = livelier, more free power
9272nd pct
9166th pct
Spin potential higher = more spin off the string bed
4.132nd pct
3.723rd pct
Ball bite higher = grabs the ball harder
0.47668th pct
0.49977th pct
String friction lower = strings slide and snap back
0.11580th pct
0.13489th pct

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.

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 DNA 17 (1.22) at 52 lb

String Hexy Fiber 17 at 50.3 lb 22.8 kg

Coming from Hexy Fiber 17 at 52 lb

String DNA 17 (1.22) at 53.5 lb 24.3 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.

DNA 17 (1.22) mains / Hexy Fiber 17 crosses

Stiffness8th pct · 1 measured
Tension loss40th pct · 1 measured
Energy return69th pct · 1 measured
Spin potential31st pct · 1 measured
Ball bite70th pct · 1 measured
String friction83rd pct · 1 measured

Hexy Fiber 17 mains / DNA 17 (1.22) crosses

Stiffness8th pct · 1 measured
Tension loss38th pct · 1 measured
Energy return68th pct · 1 measured
Spin potential24th pct · 1 measured
Ball bite76th pct · 1 measured
String friction87th pct · 1 measured

Open this in the hybrid builder

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.

DNA 17 (1.22)

~27 hours of play

Hexy Fiber 17

~30 hours of play

Both strings in full

Every published measurement
StringGaugePriceStiff lb/inLoss %Power %SpinBite COFFriction COF
Dunlop DNA 17 (1.22) Nylon17find14528924.10.4760.115
Dunlop Hexy Fiber 17 Nylon17find14425913.70.4990.134

Add a third string DNA 17 (1.22) in full Hexy Fiber 17 in full