Head to head

Dunlop Black Widow 17 vs Luxilon Element 16L (1.25)

Element 16L (1.25) leads on 4 of 6 measurements. The widest gap is string friction, where Element 16L (1.25) is 53 percentile points ahead. Every figure is a testing-machine result at a fixed reference tension.

Measured, side by side

Dunlop

Black Widow 17

Polyester · 17 ga

Luxilon

Element 16L (1.25)

Polyester · 16L ga

Stiffness lower = softer, kinder on the arm
21785th pct
20876th pct
Tension loss lower = stays where you strung it
3251st pct
3455th pct
Energy return higher = livelier, more free power
8843rd pct
8848th pct
Spin potential higher = more spin off the string bed
5.467th pct
5.569th pct
Ball bite higher = grabs the ball harder
0.57393rd pct
0.43145th pct
String friction lower = strings slide and snap back
0.10772nd pct
0.07819th 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 Black Widow 17 at 52 lb

String Element 16L (1.25) at 54.2 lb 24.6 kg

Coming from Element 16L (1.25) at 52 lb

String Black Widow 17 at 49.9 lb 22.6 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.

Black Widow 17 mains / Element 16L (1.25) crosses

Stiffness81st pct · 1 measured
Tension loss52nd pct · 1 measured
Energy return45th pct · 1 measured
Spin potential68th pct · 1 measured
Ball bite91st pct · 1 measured
String friction62nd pct · 1 measured

Element 16L (1.25) mains / Black Widow 17 crosses

Stiffness80th pct · 1 measured
Tension loss54th pct · 1 measured
Energy return45th pct · 1 measured
Spin potential68th pct · 1 measured
Ball bite57th pct · 1 measured
String friction35th 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.

Black Widow 17

~25 hours of play

Element 16L (1.25)

~23 hours of play

Both strings in full

Every published measurement
StringGaugePriceStiff lb/inLoss %Power %SpinBite COFFriction COF
Dunlop Black Widow 17 Polyester17$10.9921732885.40.5730.107
Luxilon Element 16L (1.25) Polyester16L$19.5020834885.50.4310.078

Add a third string Black Widow 17 in full Element 16L (1.25) in full