Head to head

Tecnifibre XR3 16 vs Volkl Power-Fiber II 16

Power-Fiber II 16 leads on 4 of 6 measurements. The widest gap is ball bite, where XR3 16 is 37 percentile points ahead. Every figure is a testing-machine result at a fixed reference tension.

Measured, side by side

Tecnifibre

XR3 16

Nylon/Polyurethane · 16 ga

Volkl

Power-Fiber II 16

Nylon · 16 ga

Stiffness lower = softer, kinder on the arm
16329th pct
15924th pct
Tension loss lower = stays where you strung it
2121st pct
2122nd pct
Energy return higher = livelier, more free power
9272nd pct
9274th pct
Spin potential higher = more spin off the string bed
2.98th pct
3.213th pct
Ball bite higher = grabs the ball harder
0.46563rd pct
0.40526th pct
String friction lower = strings slide and snap back
0.16195th pct
0.12686th 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 XR3 16 at 52 lb

String Power-Fiber II 16 at 55.6 lb 25.2 kg

Coming from Power-Fiber II 16 at 52 lb

String XR3 16 at 48.9 lb 22.2 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.

XR3 16 mains / Power-Fiber II 16 crosses

Stiffness27th pct · 1 measured
Tension loss21st pct · 1 measured
Energy return73rd pct · 1 measured
Spin potential8th pct · 1 measured
Ball bite59th pct · 1 measured
String friction94th pct · 1 measured

Power-Fiber II 16 mains / XR3 16 crosses

Stiffness26th pct · 1 measured
Tension loss21st pct · 1 measured
Energy return73rd pct · 1 measured
Spin potential12th pct · 1 measured
Ball bite33rd pct · 1 measured
String friction89th 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.

XR3 16

~34 hours of play

Power-Fiber II 16

~34 hours of play

Both strings in full

Every published measurement
StringGaugePriceStiff lb/inLoss %Power %SpinBite COFFriction COF
Tecnifibre XR3 16 Nylon/Polyurethane16find16321922.90.4650.161
Volkl Power-Fiber II 16 Nylon16$14.9915921923.20.4050.126

Add a third string XR3 16 in full Power-Fiber II 16 in full