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Poly Star

Classic 16L (1.25)

Polyester Gauge 16L 1.25 mm In production

Lab measurements for Poly Star Classic 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

175lb/in

lower = softer, kinder on the arm

Tension loss

55%

lower = stays where you strung it

Energy return

82%

higher = livelier, more free power

Spin potential

4.4

higher = more spin off the string bed

Ball bite

0.368COF

higher = grabs the ball harder

Snapback

0.083COF

lower = strings slide and snap back

How it ranks against all 789 strings

Stiffness 175 lb/in · 43rd pct

Stiffer than 43% of strings tested.

Tension loss 55 % · 94th pct

Sheds more tension than 94% of strings tested — goes dead fast, expect frequent restringing.

Energy return 82 % · 6th pct

Livelier than 6% of strings tested — very muted and low-powered.

Spin potential 4.4 · 40th pct

More spin potential than 40% of strings tested.

Ball bite 0.368 COF · 7th pct

Grips the ball harder than 7% of strings tested — slick against the ball.

Snapback 0.083 COF · 30th pct

More string-on-string friction than 30% of strings tested.

Strings that play like this

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

Polyfibre Black Venom 16 (1.30) 98% match Polyfibre TCS 16/1.30 97% match Polyfibre Hightec Premium 16/1.30 97% match Polyfibre Hightec Premium 16L 96% match Polyfibre Poly Hightec 16L 96% match Polyfibre Hexablade 16L (1.25) 96% match

More from Poly Star

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 Classic 16L (1.25) against 789 strings Find the right string for me