Head to head

Tecnifibre Pro Red Code 18 vs Volkl V-Pro 18

V-Pro 18 leads on 4 of 6 measurements. The widest gap is ball bite, where V-Pro 18 is 9 percentile points ahead. Every figure is a testing-machine result at a fixed reference tension.

Measured, side by side

Tecnifibre

Pro Red Code 18

Polyester · 18 ga

Volkl

V-Pro 18

Polyester · 18 ga

Stiffness lower = softer, kinder on the arm
21785th pct
21382nd pct
Tension loss lower = stays where you strung it
3661st pct
3354th pct
Energy return higher = livelier, more free power
8848th pct
8850th pct
Spin potential higher = more spin off the string bed
5.056th pct
4.954th pct
Ball bite higher = grabs the ball harder
0.41735th pct
0.42943rd pct
String friction lower = strings slide and snap back
0.08432nd pct
0.08739th 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 Pro Red Code 18 at 52 lb

String V-Pro 18 at 51.4 lb 23.3 kg

Coming from V-Pro 18 at 52 lb

String Pro Red Code 18 at 52.9 lb 24.0 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.

Pro Red Code 18 mains / V-Pro 18 crosses

Stiffness84th pct · 1 measured
Tension loss59th pct · 1 measured
Energy return49th pct · 1 measured
Spin potential55th pct · 1 measured
Ball bite36th pct · 1 measured
String friction33rd pct · 1 measured

V-Pro 18 mains / Pro Red Code 18 crosses

Stiffness83rd pct · 1 measured
Tension loss56th pct · 1 measured
Energy return49th pct · 1 measured
Spin potential55th pct · 1 measured
Ball bite42nd pct · 1 measured
String friction38th 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.

Pro Red Code 18

~22 hours of play

V-Pro 18

~24 hours of play

Both strings in full

Every published measurement
StringGaugePriceStiff lb/inLoss %Power %SpinBite COFFriction COF
Tecnifibre Pro Red Code 18 Polyester18$7.4621736885.00.4170.084
Volkl V-Pro 18 Polyester18$8.9921333884.90.4290.087

Add a third string Pro Red Code 18 in full V-Pro 18 in full