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Yonex

Poly Tour HS 16L (1.25)

Polyester Gauge 16L 1.27 mm In production

Lab measurements for Yonex Poly Tour HS 16L (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

198lb/in

lower = softer, kinder on the arm

Tension loss

29%

lower = stays where you strung it

Energy return

88%

higher = livelier, more free power

Spin potential

5.7

higher = more spin off the string bed

Ball bite

0.461COF

higher = grabs the ball harder

Snapback

0.081COF

lower = strings slide and snap back

How it ranks against all 789 strings

Stiffness 198 lb/in · 67th pct

Stiffer than 67% of strings tested.

Tension loss 29 % · 44th pct

Sheds more tension than 44% of strings tested.

Energy return 88 % · 48th pct

Livelier than 48% of strings tested.

Spin potential 5.7 · 74th pct

More spin potential than 74% of strings tested.

Ball bite 0.461 COF · 62nd pct

Grips the ball harder than 62% of strings tested.

Snapback 0.081 COF · 26th pct

More string-on-string friction than 26% of strings tested.

Strings that play like this

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

Tourna Black Zone 16 98% match Topspin Cyber Whirl 17 (1.24) 96% match Solinco Tour Bite Soft 16L (1.25) 96% match Gamma IO 17 (1.23) 95% match Pacific XCite 16L (1.25) 95% match Signum Pro Poly Plasma 17 (1.23) 95% match

More from Yonex

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 Poly Tour HS 16L (1.25) against 789 strings Find the right string for me