Head to head

Tecnifibre Pro Red Code 17 vs Tecnifibre Pro Red Code 18

Pro Red Code 18 leads on 5 of 6 measurements. The widest gap is string friction, where Pro Red Code 18 is 18 percentile points ahead. Every figure is a testing-machine result at a fixed reference tension.

Measured, side by side

Tecnifibre

Pro Red Code 17

Polyester · 17 ga

Tecnifibre

Pro Red Code 18

Polyester · 18 ga

Stiffness lower = softer, kinder on the arm
22691st pct
21785th pct
Tension loss lower = stays where you strung it
3661st pct
3661st pct
Energy return higher = livelier, more free power
8846th pct
8848th pct
Spin potential higher = more spin off the string bed
4.851st pct
5.056th pct
Ball bite higher = grabs the ball harder
0.43949th pct
0.41735th pct
String friction lower = strings slide and snap back
0.09250th pct
0.08432nd 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 17 at 52 lb

String Pro Red Code 18 at 62.4 lb 28.3 kg

Coming from Pro Red Code 18 at 52 lb

String Pro Red Code 17 at 43.3 lb 19.6 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.

Pro Red Code 17 mains / Pro Red Code 18 crosses

Stiffness89th pct · 1 measured
Tension loss61st pct · 1 measured
Energy return48th pct · 1 measured
Spin potential53rd pct · 1 measured
Ball bite48th pct · 1 measured
String friction48th pct · 1 measured

Pro Red Code 18 mains / Pro Red Code 17 crosses

Stiffness88th pct · 1 measured
Tension loss61st pct · 1 measured
Energy return48th pct · 1 measured
Spin potential55th pct · 1 measured
Ball bite38th pct · 1 measured
String friction37th 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 17

~22 hours of play

Pro Red Code 18

~22 hours of play

Both strings in full

Every published measurement
StringGaugePriceStiff lb/inLoss %Power %SpinBite COFFriction COF
Tecnifibre Pro Red Code 17 Polyester17$7.4622636884.80.4390.092
Tecnifibre Pro Red Code 18 Polyester18$7.4621736885.00.4170.084

Add a third string Pro Red Code 17 in full Pro Red Code 18 in full