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Gosen

Sidewinder 16 (1.31)

Polyester Gauge 16 1.29 mm In production

Lab measurements for Gosen Sidewinder 16 (1.31), 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

163lb/in

lower = softer, kinder on the arm

Tension loss

47%

lower = stays where you strung it

Energy return

87%

higher = livelier, more free power

Spin potential

3.8

higher = more spin off the string bed

Ball bite

0.416COF

higher = grabs the ball harder

Snapback

0.110COF

lower = strings slide and snap back

How it ranks against all 789 strings

Stiffness 163 lb/in · 31st pct

Stiffer than 31% of strings tested.

Tension loss 47 % · 81st pct

Sheds more tension than 81% of strings tested.

Energy return 87 % · 33rd pct

Livelier than 33% of strings tested.

Spin potential 3.8 · 25th pct

More spin potential than 25% of strings tested.

Ball bite 0.416 COF · 34th pct

Grips the ball harder than 34% of strings tested.

Snapback 0.110 COF · 76th pct

More string-on-string friction than 76% of strings tested.

Strings that play like this

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

Solinco Tour Bite Diamond Rough 17 (1.20) 88% match Head Sonic Pro 17 88% match Yonex Poly Tour Air 16L 88% match Gosen Sidewinder 17 88% match MSV Co.-Focus 16L 87% match Luxilon Big Banger Timo 18 (1.10) 87% 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 Sidewinder 16 (1.31) against 789 strings Find the right string for me