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Babolat

RPM Blast Rough 17

Polyester Gauge 17 1.32 mm In production

Lab measurements for Babolat RPM Blast Rough 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

196lb/in

lower = softer, kinder on the arm

Tension loss

36%

lower = stays where you strung it

Energy return

86%

higher = livelier, more free power

Spin potential

9.9

higher = more spin off the string bed

Ball bite

0.564COF

higher = grabs the ball harder

Snapback

0.057COF

lower = strings slide and snap back

How it ranks against all 789 strings

Stiffness 196 lb/in · 64th pct

Stiffer than 64% of strings tested.

Tension loss 36 % · 59th pct

Sheds more tension than 59% of strings tested.

Energy return 86 % · 29th pct

Livelier than 29% of strings tested.

Spin potential 9.9 · 100th pct

More spin potential than 100% of strings tested — elite spin generation.

Ball bite 0.564 COF · 92nd pct

Grips the ball harder than 92% of strings tested — bites the ball hard through the brush.

Snapback 0.057 COF · 0th pct

More string-on-string friction than 0% of strings tested — slides and snaps back freely.

Strings that play like this

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

Luxilon ECO Power 17 (1.25) 98% match Babolat RPM Blast Rough 15L 96% match Toroline Super Toro 17 (1.23) 95% match Wilson Revolve 17 (1.25) 94% match Diadem Elite XT 16 94% match Weiss Cannon Red Ghost 17L (1.18) 94% match

More from Babolat

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 RPM Blast Rough 17 against 789 strings Find the right string for me