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Solinco

X-Natural 17 (1.20)

Nylon Gauge 17 1.27 mm In production

Lab measurements for Solinco X-Natural 17 (1.20), 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

159lb/in

lower = softer, kinder on the arm

Tension loss

21%

lower = stays where you strung it

Energy return

89%

higher = livelier, more free power

Spin potential

5.1

higher = more spin off the string bed

Ball bite

0.491COF

higher = grabs the ball harder

Snapback

0.097COF

lower = strings slide and snap back

How it ranks against all 789 strings

Stiffness 159 lb/in · 24th pct

Stiffer than 24% of strings tested.

Tension loss 21 % · 23rd pct

Sheds more tension than 23% of strings tested.

Energy return 89 % · 56th pct

Livelier than 56% of strings tested.

Spin potential 5.1 · 59th pct

More spin potential than 59% of strings tested.

Ball bite 0.491 COF · 74th pct

Grips the ball harder than 74% of strings tested.

Snapback 0.097 COF · 59th pct

More string-on-string friction than 59% of strings tested.

Strings that play like this

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

Head Reflex MLT 16 (1.30) 94% match Volkl Synthetic Gut 17 91% match Prince Premier Control 17 90% match Tecnifibre Triax 16 (1.33) 89% match Prince Premier Power 16 89% match Dunlop M-Fil Tour 16 88% match

More from Solinco

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 X-Natural 17 (1.20) against 789 strings Find the right string for me