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Polyfibre

Black Venom Rough 16L (1.25)

Polyester Gauge 16L 1.16 mm In production

Lab measurements for Polyfibre Black Venom Rough 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

162lb/in

lower = softer, kinder on the arm

Tension loss

61%

lower = stays where you strung it

Energy return

81%

higher = livelier, more free power

Spin potential

6.2

higher = more spin off the string bed

Ball bite

0.531COF

higher = grabs the ball harder

Snapback

0.085COF

lower = strings slide and snap back

How it ranks against all 789 strings

Stiffness 162 lb/in · 29th pct

Stiffer than 29% of strings tested.

Tension loss 61 % · 97th pct

Sheds more tension than 97% of strings tested — goes dead fast, expect frequent restringing.

Energy return 81 % · 4th pct

Livelier than 4% of strings tested — very muted and low-powered.

Spin potential 6.2 · 82nd pct

More spin potential than 82% of strings tested.

Ball bite 0.531 COF · 87th pct

Grips the ball harder than 87% of strings tested.

Snapback 0.085 COF · 34th pct

More string-on-string friction than 34% of strings tested.

Strings that play like this

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

Volkl Cyclone Tour 17 (1.25) 94% match Double AR WTS 25 (1.25) 93% match Double AR Diablo (1.24) 93% match Volkl V-Star 16 (1.30) 93% match Double AR Diablo (1.31) 92% match Double AR Twice Dragon(1.30) 92% match

More from Polyfibre

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 Black Venom Rough 16L (1.25) against 789 strings Find the right string for me