Kirschbaum

Max Power 17 (1.25)

Name: Kirschbaum Max Power 17 (1.25)
Brand: Kirschbaum

Polyester Gauge 17 1.25 mm In production

Lab measurements for Kirschbaum Max Power 17 (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

241lb/in

lower = softer, kinder on the arm

Tension loss

24%

lower = stays where you strung it

Energy return

90%

higher = livelier, more free power

Spin potential

5.4

higher = more spin off the string bed

Ball bite

0.485COF

higher = grabs the ball harder

Snapback

0.089COF

lower = strings slide and snap back

How it ranks against all 789 strings

Stiffness 241 lb/in · 98th pct

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

Tension loss 24 % · 31st pct

Sheds more tension than 31% of strings tested.

Energy return 90 % · 61st pct

Livelier than 61% of strings tested.

Spin potential 5.4 · 67th pct

More spin potential than 67% of strings tested.

Ball bite 0.485 COF · 72nd pct

Grips the ball harder than 72% of strings tested.

Snapback 0.089 COF · 44th pct

More string-on-string friction than 44% of strings tested.

Strings that play like this

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

Double AR Raptor 1.27 97% match Tourna Big HItter Black 7 16 (1.25) 94% match Kirschbaum Max Power Rough 17 (1.25) 94% match Gamma Zo Verve 16 (1.32) 94% match Babolat RPM Team 17 (1.25) 93% match Kirschbaum Max Power 16 (1.30) 93% match

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 17 (1.25) against 789 strings Find the right string for me

Measured values

How it ranks against all 789 strings

Strings that play like this

More from Kirschbaum

What these numbers mean