Tecnifibre

X-Code 16

Polyester Gauge 16 1.33 mm In production

Lab measurements for Tecnifibre X-Code 16, 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

188lb/in

lower = softer, kinder on the arm

Tension loss

38%

lower = stays where you strung it

Energy return

85%

higher = livelier, more free power

Spin potential

2.0

higher = more spin off the string bed

Ball bite

0.416COF

higher = grabs the ball harder

Snapback

0.210COF

lower = strings slide and snap back

How it ranks against all 789 strings

Stiffness 188 lb/in · 55th pct

Stiffer than 55% of strings tested.

Tension loss 38 % · 64th pct

Sheds more tension than 64% of strings tested.

Energy return 85 % · 23rd pct

Livelier than 23% of strings tested.

Spin potential 2.0 · 2nd pct

More spin potential than 2% of strings tested — minimal spin generation.

Ball bite 0.416 COF · 34th pct

Grips the ball harder than 34% of strings tested.

Snapback 0.210 COF · 99th pct

More string-on-string friction than 99% of strings tested — notches badly and stays put.

Strings that play like this

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

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 X-Code 16 against 789 strings Find the right string for me