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Gosen

Polylon 17 (1.24)

Polyester Gauge 17 1.25 mm In production

Lab measurements for Gosen Polylon 17 (1.24), 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

208lb/in

lower = softer, kinder on the arm

Tension loss

49%

lower = stays where you strung it

Energy return

83%

higher = livelier, more free power

Spin potential

4.3

higher = more spin off the string bed

Ball bite

0.391COF

higher = grabs the ball harder

Snapback

0.090COF

lower = strings slide and snap back

How it ranks against all 789 strings

Stiffness 208 lb/in · 76th pct

Stiffer than 76% of strings tested.

Tension loss 49 % · 87th pct

Sheds more tension than 87% of strings tested.

Energy return 83 % · 10th pct

Livelier than 10% of strings tested — very muted and low-powered.

Spin potential 4.3 · 37th pct

More spin potential than 37% of strings tested.

Ball bite 0.391 COF · 18th pct

Grips the ball harder than 18% of strings tested.

Snapback 0.090 COF · 46th pct

More string-on-string friction than 46% of strings tested.

Strings that play like this

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

Kirschbaum Pro Line I 17 (1.25) 97% match Gosen Polylon 16 96% match Luxilon Big Banger Rough 130/16 96% match Luxilon Big Banger XP 125/16L 95% match Kirschbaum Competition 17 (1.25) 95% match Weiss Cannon Turbotwist 17 (1.24) 93% match

More from Gosen

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 Polylon 17 (1.24) against 789 strings Find the right string for me