StringSpec
String finder

Browse all 791

Head to head

Double AR Twice Dragon(1.30) vs IsoSpeed Pyramid 16

Twice Dragon(1.30) leads on 4 of 6 measurements. The widest gap is string friction, where Twice Dragon(1.30) is 20 percentile points ahead. Every figure is a testing-machine result at a fixed reference tension.

Measured, side by side

Double AR

Twice Dragon(1.30)

Polyester

IsoSpeed

Pyramid 16

Polyester · 16 ga

Stiffness lower = softer, kinder on the arm
17139th pct
17543rd pct
Tension loss lower = stays where you strung it
5190th pct
5896th pct
Energy return higher = livelier, more free power
8310th pct
8411th pct
Spin potential higher = more spin off the string bed
7.292nd pct
7.090th pct
Ball bite higher = grabs the ball harder
0.51081st pct
0.57193rd pct
String friction lower = strings slide and snap back
0.0716th pct
0.08126th 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 Twice Dragon(1.30) at 52 lb

String Pyramid 16 at 49.6 lb 22.5 kg

Coming from Pyramid 16 at 52 lb

String Twice Dragon(1.30) at 54.2 lb 24.6 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.

Twice Dragon(1.30) mains / Pyramid 16 crosses

Stiffness40th pct · 1 measured
Tension loss94th pct · 1 measured
Energy return10th pct · 1 measured
Spin potential92nd pct · 1 measured
Ball bite84th pct · 1 measured
String friction10th pct · 1 measured

Pyramid 16 mains / Twice Dragon(1.30) crosses

Stiffness42nd pct · 1 measured
Tension loss95th pct · 1 measured
Energy return10th pct · 1 measured
Spin potential91st pct · 1 measured
Ball bite92nd pct · 1 measured
String friction20th 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.

Twice Dragon(1.30)

~13 hours of play

Pyramid 16

~11 hours of play

Both strings in full

Every published measurement
StringGaugePriceStiff lb/inLoss %Power %SpinBite COFFriction COF
Double AR Twice Dragon(1.30) Polyester—find17151837.20.5100.071
IsoSpeed Pyramid 16 Polyester16find17558847.00.5710.081

Add a third string Twice Dragon(1.30) in full Pyramid 16 in full