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Wilson

Synthetic Gut Extreme 17

Nylon Gauge 17 1.26 mm In production

Lab measurements for Wilson Synthetic Gut Extreme 17, 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

185lb/in

lower = softer, kinder on the arm

Tension loss

19%

lower = stays where you strung it

Energy return

94%

higher = livelier, more free power

Spin potential

2.8

higher = more spin off the string bed

Ball bite

0.361COF

higher = grabs the ball harder

Snapback

0.131COF

lower = strings slide and snap back

How it ranks against all 789 strings

Stiffness 185 lb/in · 52nd pct

Stiffer than 52% of strings tested.

Tension loss 19 % · 15th pct

Sheds more tension than 15% of strings tested.

Energy return 94 % · 93rd pct

Livelier than 93% of strings tested — huge free power off the string bed.

Spin potential 2.8 · 7th pct

More spin potential than 7% of strings tested — minimal spin generation.

Ball bite 0.361 COF · 5th pct

Grips the ball harder than 5% of strings tested — slick against the ball.

Snapback 0.131 COF · 88th pct

More string-on-string friction than 88% of strings tested.

Strings that play like this

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

Prince Topspin W/ Duraflex 15L 94% match Wilson Red Alert 16 93% match Prince Lightning XX 17 93% match Wilson NXT Tour 17 92% match Prince Lightning XX 16 92% match Dunlop Explosive Synthetic 16 91% 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 Synthetic Gut Extreme 17 against 789 strings Find the right string for me