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Gamma

RZR Rx 17

Polyester Gauge 17 1.33 mm In production

Lab measurements for Gamma RZR Rx 17, 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

185lb/in

lower = softer, kinder on the arm

Tension loss

29%

lower = stays where you strung it

Energy return

88%

higher = livelier, more free power

Spin potential

4.8

higher = more spin off the string bed

Ball bite

0.448COF

higher = grabs the ball harder

Snapback

0.094COF

lower = strings slide and snap back

How it ranks against all 789 strings

Stiffness 185 lb/in · 52nd pct

Stiffer than 52% of strings tested.

Tension loss 29 % · 45th pct

Sheds more tension than 45% of strings tested.

Energy return 88 % · 48th pct

Livelier than 48% of strings tested.

Spin potential 4.8 · 51st pct

More spin potential than 51% of strings tested.

Ball bite 0.448 COF · 55th pct

Grips the ball harder than 55% of strings tested.

Snapback 0.094 COF · 54th pct

More string-on-string friction than 54% of strings tested.

Strings that play like this

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

Head Hawk Touch 19 (1.15) 94% match Dunlop Explosive 18 (1.20) 92% match Topspin Cyber Blue 17L (1.20) 92% match Dunlop Explosive 17 (1.26) 92% match Solinco Hyper-G-Soft 16L (1.25) 92% match Yonex Poly Tour Strike 16L (1.25) 91% match

More from Gamma

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 RZR Rx 17 against 789 strings Find the right string for me