Head to head

Volkl Cyclone 18L (1.15) vs Volkl Cyclone 19 (1.10)

Cyclone 18L (1.15) leads on 3 of 6 measurements. The widest gap is tension loss, where Cyclone 18L (1.15) is 7 percentile points ahead. Every figure is a testing-machine result at a fixed reference tension.

Measured, side by side

Volkl

Cyclone 18L (1.15)

Polyester · 18L ga

Volkl

Cyclone 19 (1.10)

Polyester · 19 ga

Stiffness lower = softer, kinder on the arm
18855th pct
18349th pct
Tension loss lower = stays where you strung it
2947th pct
3354th pct
Energy return higher = livelier, more free power
8848th pct
8952nd pct
Spin potential higher = more spin off the string bed
9.099th pct
8.297th pct
Ball bite higher = grabs the ball harder
0.64198th pct
0.58294th pct
Snapback lower = strings slide and snap back
0.0716th pct
0.0716th pct

Bars are percentile against all 788 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 Cyclone 18L (1.15) at 52 lb

String Cyclone 19 (1.10) at 53.4 lb 24.2 kg

Coming from Cyclone 19 (1.10) at 52 lb

String Cyclone 18L (1.15) at 50.6 lb 23.0 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.

Cyclone 18L (1.15) mains / Cyclone 19 (1.10) crosses

Stiffness53rd pct · 1 measured
Tension loss49th pct · 1 measured
Energy return49th pct · 1 measured
Spin potential99th pct · 1 measured
Ball bite98th pct · 1 measured
Snapback6th pct · 1 measured

Cyclone 19 (1.10) mains / Cyclone 18L (1.15) crosses

Stiffness52nd pct · 1 measured
Tension loss51st pct · 1 measured
Energy return49th pct · 1 measured
Spin potential97th pct · 1 measured
Ball bite95th pct · 1 measured
Snapback6th 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.

Cyclone 18L (1.15)

~26 hours of play

Cyclone 19 (1.10)

~24 hours of play

Both strings in full

Every published measurement
StringGaugeStiff lb/inLoss %Power %SpinBite COFSnap COF
Volkl Cyclone 18L (1.15) Polyester18L18829889.00.6410.071
Volkl Cyclone 19 (1.10) Polyester1918333898.20.5820.071

Add a third string Cyclone 18L (1.15) in full Cyclone 19 (1.10) in full