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Wilson

Enduro Pro 17 (1.25)

Nylon/Polyester Gauge 17 1.27 mm In production

Lab measurements for Wilson Enduro Pro 17 (1.25), 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

227lb/in

lower = softer, kinder on the arm

Tension loss

33%

lower = stays where you strung it

Energy return

88%

higher = livelier, more free power

Spin potential

4.0

higher = more spin off the string bed

Ball bite

0.374COF

higher = grabs the ball harder

Snapback

0.094COF

lower = strings slide and snap back

How it ranks against all 789 strings

Stiffness 227 lb/in · 92nd pct

Stiffer than 92% of strings tested — punishingly firm — control at the cost of comfort.

Tension loss 33 % · 54th pct

Sheds more tension than 54% of strings tested.

Energy return 88 % · 44th pct

Livelier than 44% of strings tested.

Spin potential 4.0 · 30th pct

More spin potential than 30% of strings tested.

Ball bite 0.374 COF · 10th pct

Grips the ball harder than 10% of strings tested — slick against the ball.

Snapback 0.094 COF · 54th pct

More string-on-string friction than 54% of strings tested.

Strings that play like this

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

L-Tec Premium 3S 16L (1.25) 97% match Klip K-Boom 16/1.30 96% match Tecnifibre Razor Code 16 (1.30) 96% match L-Tec Premium OS 17 (1.23) 94% match Babolat Hurricane Feel 17 94% match Signum Pro Poly Megaforce 16 93% 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 Enduro Pro 17 (1.25) against 789 strings Find the right string for me