Kirschbaum

Max Power Rough 17 (1.25)

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

Polyester Gauge 17 1.33 mm In production

Lab measurements for Kirschbaum Max Power Rough 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

224lb/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

5.6

higher = more spin off the string bed

Ball bite

0.496COF

higher = grabs the ball harder

Snapback

0.088COF

lower = strings slide and snap back

How it ranks against all 789 strings

Stiffness 224 lb/in · 90th pct

Stiffer than 90% 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 % · 60th pct

Livelier than 60% of strings tested.

Spin potential 5.6 · 71st pct

More spin potential than 71% of strings tested.

Ball bite 0.496 COF · 76th pct

Grips the ball harder than 76% of strings tested.

Snapback 0.088 COF · 42nd pct

More string-on-string friction than 42% of strings tested.

Strings that play like this

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

Tourna Big HItter Black 7 16 (1.25) 96% match Gamma Zo Verve 17 95% match Tecnifibre Razor Code 17 (1.25) 94% match Solinco Hyper-G 16L (1.25) 94% match Kirschbaum Max Power 17 (1.25) 94% match Gamma Moto 16 94% 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 Rough 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