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Wilson

NXT Power 17 (1.26)

Nylon Gauge 17 1.25 mm In production

Lab measurements for Wilson NXT Power 17 (1.26), ranked against all 789 strings in the database. Every figure below is a testing-machine result at a fixed reference tension, not a playtest opinion.

Measured values

Stiffness

158lb/in

lower = softer, kinder on the arm

Tension loss

14%

lower = stays where you strung it

Energy return

92%

higher = livelier, more free power

Spin potential

5.5

higher = more spin off the string bed

Ball bite

0.488COF

higher = grabs the ball harder

Snapback

0.088COF

lower = strings slide and snap back

How it ranks against all 789 strings

Stiffness 158 lb/in · 22nd pct

Stiffer than 22% of strings tested.

Tension loss 14 % · 3rd pct

Sheds more tension than 3% of strings tested — outstanding tension maintenance.

Energy return 92 % · 69th pct

Livelier than 69% of strings tested.

Spin potential 5.5 · 69th pct

More spin potential than 69% of strings tested.

Ball bite 0.488 COF · 73rd pct

Grips the ball harder than 73% of strings tested.

Snapback 0.088 COF · 42nd pct

More string-on-string friction than 42% of strings tested.

Strings that play like this

Closest matches across stiffness, tension loss, energy return and spin potential.

Tourna Irradiated 17 95% match Wilson NXT Duramax 16 (1.32) 94% match Babolat Synthetic Gut 17 (1.25) 92% match Wilson Synthetic Gut Power 16 (1.30) 92% match Gamma Synthetic Gut 18 (1.18) 92% match Prince Lightning Pro 16 (1.30) 92% match

More from Wilson

What these numbers mean

Stiffness · lb/in

How much the string bed resists deflection. Higher plays firmer and more controlled; lower plays softer and easier on the arm.

Tension loss · %

Share of the reference tension the string sheds under a fixed test protocol. Lower means the bed stays where you strung it for longer.

Energy return · %

Share of impact energy handed back to the ball. Higher plays livelier and more powerful.

Spin potential

Ball friction divided by string-on-string friction. Higher means better bite with a cleaner snapback, so more spin.

Ball bite · COF

String-on-ball friction. Higher grabs the ball harder through the brush.

Snapback · COF

String-on-string friction. Lower lets the mains slide and snap back into place after impact.

Compare NXT Power 17 (1.26) against 789 strings Find the right string for me