Head to head

Babolat RPM Blast 16 vs Luxilon Monotec Zolo 15L

They split the measurements 3–3. The widest gap is string friction, where Monotec Zolo 15L is 16 percentile points ahead. Every figure is a testing-machine result at a fixed reference tension.

Measured, side by side

Babolat

RPM Blast 16

Polyester · 16 ga

Luxilon

Monotec Zolo 15L

Polyester · 15L ga

Stiffness lower = softer, kinder on the arm
23395th pct
22087th pct
Tension loss lower = stays where you strung it
4679th pct
4782nd pct
Energy return higher = livelier, more free power
8524th pct
8414th pct
Spin potential higher = more spin off the string bed
4.543rd pct
4.645th pct
Ball bite higher = grabs the ball harder
0.40627th pct
0.38214th pct
String friction lower = strings slide and snap back
0.09046th pct
0.08331st pct

Bars are percentile against all 791 strings, and the marked side is the one that measures better, which is not always the one you want. A firmer bed is worse for your elbow and better for your control, and no measurement knows which of those you came for.

Which one wins, by problem

Each string's standing on the site's rankings, out of every measured string in the database. This is where a comparison stops being arithmetic and starts being a decision.

Swapping between them: what tension?

Bed stiffness is published at one reference tension, so the only honest conversion is to scale it. These are starting points from 52 lb, not prescriptions. The calculator takes your own tension.

Coming from RPM Blast 16 at 52 lb

String Monotec Zolo 15L at 57.0 lb 25.9 kg

Coming from Monotec Zolo 15L at 52 lb

String RPM Blast 16 at 48.1 lb 21.8 kg

Hybrid: what if you used both?

Estimated, not measured. No hybrid combination has been tested as a bed. These figures are the two strings' own lab measurements weighted by how much of the bed each one actually is. Treat them as a guide to which way a pairing moves, never as lab data.

RPM Blast 16 mains / Monotec Zolo 15L crosses

Stiffness93rd pct · 1 measured
Tension loss80th pct · 1 measured
Energy return19th pct · 1 measured
Spin potential44th pct · 1 measured
Ball bite25th pct · 1 measured
String friction43rd pct · 1 measured

Monotec Zolo 15L mains / RPM Blast 16 crosses

Stiffness91st pct · 1 measured
Tension loss81st pct · 1 measured
Energy return18th pct · 1 measured
Spin potential44th pct · 1 measured
Ball bite15th pct · 1 measured
String friction33rd pct · 1 measured

Open this in the hybrid builder

Which goes dead first?

Estimated from tension loss, which is the only thing the database measures about ageing. This is when the bed stops playing the way you strung it, not when the string breaks.

RPM Blast 16

~16 hours of play

Monotec Zolo 15L

~16 hours of play

Both strings in full

Every published measurement
StringGaugePriceStiff lb/inLoss %Power %SpinBite COFFriction COF
Babolat RPM Blast 16 Polyester16$22.0023346854.50.4060.090
Luxilon Monotec Zolo 15L Polyester15Lfind22047844.60.3820.083

Add a third string RPM Blast 16 in full Monotec Zolo 15L in full