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Head

RIP PerfectPower 16

Nylon/Polyolefin Gauge 16 1.35 mm In production

Lab measurements for Head RIP PerfectPower 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

157lb/in

lower = softer, kinder on the arm

Tension loss

23%

lower = stays where you strung it

Energy return

94%

higher = livelier, more free power

Spin potential

2.3

higher = more spin off the string bed

Ball bite

0.369COF

higher = grabs the ball harder

Snapback

0.158COF

lower = strings slide and snap back

How it ranks against all 789 strings

Stiffness 157 lb/in · 20th pct

Stiffer than 20% of strings tested.

Tension loss 23 % · 29th pct

Sheds more tension than 29% of strings tested.

Energy return 94 % · 90th pct

Livelier than 90% of strings tested.

Spin potential 2.3 · 3rd pct

More spin potential than 3% of strings tested — minimal spin generation.

Ball bite 0.369 COF · 8th pct

Grips the ball harder than 8% of strings tested — slick against the ball.

Snapback 0.158 COF · 95th pct

More string-on-string friction than 95% of strings tested — notches badly and stays put.

Strings that play like this

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

Wilson NXT 17 99% match Volkl Power-Fiber II 18 97% match Gamma Live Wire XP 16 97% match Head ETS 16 95% match Tecnifibre Multi-Feel 17 (1.25) 94% match Gamma ESP 16 94% match

More from Head

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 RIP PerfectPower 16 against 789 strings Find the right string for me