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L-Tec

Premium Pro OS 16L

Polyester Gauge 16L 1.28 mm In production

Lab measurements for L-Tec Premium Pro OS 16L, 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

254lb/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

4.3

higher = more spin off the string bed

Ball bite

0.400COF

higher = grabs the ball harder

Snapback

0.094COF

lower = strings slide and snap back

How it ranks against all 789 strings

Stiffness 254 lb/in · 99th pct

Stiffer than 99% of strings tested — punishingly firm — control at the cost of comfort.

Tension loss 26 % · 39th pct

Sheds more tension than 39% of strings tested.

Energy return 90 % · 61st pct

Livelier than 61% of strings tested.

Spin potential 4.3 · 37th pct

More spin potential than 37% of strings tested.

Ball bite 0.400 COF · 24th pct

Grips the ball harder than 24% of strings tested.

Snapback 0.094 COF · 54th pct

More string-on-string friction than 54% of strings tested.

Strings that play like this

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

Yonex Poly Tour Spin G 1.25 93% match Pacific X Force 16L (1.29) 93% match Babolat RPM Team 16 Black 91% match Gamma Zo Magic 16 91% match Babolat Hurricane Feel 16 91% match Luxilon 4G 16L (1.25) 90% match

More from L-Tec

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 Premium Pro OS 16L against 789 strings Find the right string for me