StringSpec
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Browse all 791

Head to head

Babolat Synthetic Gut 17 (1.25) vs Wilson NXT Power 17 (1.26)

They split the measurements 3–3. The widest gap is string friction, where Synthetic Gut 17 (1.25) is 37 percentile points ahead. Every figure is a testing-machine result at a fixed reference tension.

Measured, side by side

Babolat

Synthetic Gut 17 (1.25)

Nylon · 17 ga

Wilson

NXT Power 17 (1.26)

Nylon · 17 ga

Stiffness lower = softer, kinder on the arm
16229th pct
15822nd pct
Tension loss lower = stays where you strung it
179th pct
143rd pct
Energy return higher = livelier, more free power
9276th pct
9269th pct
Spin potential higher = more spin off the string bed
6.079th pct
5.569th pct
Ball bite higher = grabs the ball harder
0.42239th pct
0.48873rd pct
String friction lower = strings slide and snap back
0.0705th pct
0.08842nd 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 Synthetic Gut 17 (1.25) at 52 lb

String NXT Power 17 (1.26) at 53.5 lb 24.3 kg

Coming from NXT Power 17 (1.26) at 52 lb

String Synthetic Gut 17 (1.25) at 50.5 lb 22.9 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.

Synthetic Gut 17 (1.25) mains / NXT Power 17 (1.26) crosses

Stiffness26th pct · 1 measured
Tension loss7th pct · 1 measured
Energy return73rd pct · 1 measured
Spin potential78th pct · 1 measured
Ball bite46th pct · 1 measured
String friction13th pct · 1 measured

NXT Power 17 (1.26) mains / Synthetic Gut 17 (1.25) crosses

Stiffness25th pct · 1 measured
Tension loss6th pct · 1 measured
Energy return71st pct · 1 measured
Spin potential71st pct · 1 measured
Ball bite69th pct · 1 measured
String friction32nd 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.

Synthetic Gut 17 (1.25)

~37 hours of play

NXT Power 17 (1.26)

~39 hours of play

Both strings in full

Every published measurement
StringGaugePriceStiff lb/inLoss %Power %SpinBite COFFriction COF
Babolat Synthetic Gut 17 (1.25) Nylon17find16217926.00.4220.070
Wilson NXT Power 17 (1.26) Nylon17$26.9515814925.50.4880.088

Add a third string Synthetic Gut 17 (1.25) in full NXT Power 17 (1.26) in full