StringSpec
String finder

Browse all 789

Babolat

RPM Blast Rough 16

Polyester Gauge 16 1.29 mm In production

Lab measurements for Babolat RPM Blast Rough 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

210lb/in

lower = softer, kinder on the arm

Tension loss

30%

lower = stays where you strung it

Energy return

90%

higher = livelier, more free power

Spin potential

8.2

higher = more spin off the string bed

Ball bite

0.577COF

higher = grabs the ball harder

Snapback

0.070COF

lower = strings slide and snap back

How it ranks against all 789 strings

Stiffness 210 lb/in · 79th pct

Stiffer than 79% of strings tested.

Tension loss 30 % · 47th pct

Sheds more tension than 47% of strings tested.

Energy return 90 % · 61st pct

Livelier than 61% of strings tested.

Spin potential 8.2 · 97th pct

More spin potential than 97% of strings tested — elite spin generation.

Ball bite 0.577 COF · 93rd pct

Grips the ball harder than 93% of strings tested — bites the ball hard through the brush.

Snapback 0.070 COF · 5th pct

More string-on-string friction than 5% of strings tested — slides and snaps back freely.

Strings that play like this

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

Tecnifibre Black Code 4S 17 (1.25) 96% match MSV Focus-Hex 16 (1.23) 95% match Solinco Revolution 16L (1.25) 95% match Diadem Solstice Power 16L (1.25) 94% match Grapplesnake Alpha 17 (1.25) 94% match Tecnifibre Razor Spin 17/1.25 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 16 against 789 strings Find the right string for me