Kirschbaum

Max Power Rough 16 (1.30)

Polyester Gauge 16 1.26 mm In production

Lab measurements for Kirschbaum Max Power Rough 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

231lb/in

lower = softer, kinder on the arm

Tension loss

28%

lower = stays where you strung it

Energy return

88%

higher = livelier, more free power

Spin potential

6.0

higher = more spin off the string bed

Ball bite

0.468COF

higher = grabs the ball harder

Snapback

0.078COF

lower = strings slide and snap back

How it ranks against all 789 strings

Stiffness 231 lb/in · 94th pct

Stiffer than 94% of strings tested — punishingly firm — control at the cost of comfort.

Tension loss 28 % · 44th pct

Sheds more tension than 44% of strings tested.

Energy return 88 % · 44th pct

Livelier than 44% of strings tested.

Spin potential 6.0 · 79th pct

More spin potential than 79% of strings tested.

Ball bite 0.468 COF · 65th pct

Grips the ball harder than 65% of strings tested.

Snapback 0.078 COF · 19th pct

More string-on-string friction than 19% of strings tested.

Strings that play like this

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

More from Kirschbaum

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 Max Power Rough 16 (1.30) against 789 strings Find the right string for me