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Tecnifibre

Black Code 4S 16 (1.30)

Polyester Gauge 16 1.30 mm In production

Lab measurements for Tecnifibre Black Code 4S 16 (1.30), 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

243lb/in

lower = softer, kinder on the arm

Tension loss

26%

lower = stays where you strung it

Energy return

90%

higher = livelier, more free power

Spin potential

9.2

higher = more spin off the string bed

Ball bite

0.674COF

higher = grabs the ball harder

Snapback

0.073COF

lower = strings slide and snap back

How it ranks against all 789 strings

Stiffness 243 lb/in · 98th pct

Stiffer than 98% of strings tested — punishingly firm — control at the cost of comfort.

Tension loss 26 % · 37th pct

Sheds more tension than 37% of strings tested.

Energy return 90 % · 58th pct

Livelier than 58% of strings tested.

Spin potential 9.2 · 99th pct

More spin potential than 99% of strings tested — elite spin generation.

Ball bite 0.674 COF · 99th pct

Grips the ball harder than 99% of strings tested — bites the ball hard through the brush.

Snapback 0.073 COF · 9th pct

More string-on-string friction than 9% of strings tested — slides and snaps back freely.

Strings that play like this

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

Tecnifibre Razor Spin 17/1.25 95% match Signum Pro Plasma HEXtreme 16 (1.30) 95% match Weiss Cannon Blue Rock N Power 95% match Gamma Ocho 16 (1.30) 94% match Solinco Hyper-G 16 93% match Diadem Solstice Power 15L (1.35) 93% match

More from Tecnifibre

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 Code 4S 16 (1.30) against 789 strings Find the right string for me