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Toroline
A5 16L (1.25)
Lab measurements for Toroline A5 16L (1.25), ranked against all 791 strings in the database. Every figure below is a testing-machine result at a fixed reference tension, not a playtest opinion.
Measured values
Stiffness
—lb/in
not measured
Tension loss
—%
not measured
Energy return
—%
not measured
Spin potential
7.3
higher = more spin off the string bed
Ball bite
0.521COF
higher = grabs the ball harder
String friction
0.071COF
lower = strings slide and snap back
How it ranks against all 791 strings
More spin potential than 93% of strings tested — elite spin generation.
Grips the ball harder than 84% of strings tested.
More string-on-string friction than 6% of strings tested — slides and snaps back freely.
What A5 16L (1.25) is actually good for
Its standing on each of the site's rankings, out of every measured string in the database. Same arithmetic as the finder, not a separate opinion.
How long it lasts, and how far it stretches
Elongation under load
How far the string stretches when tensioned to a given load. A string that elongates more absorbs more of the impact itself and feels softer; one that barely moves passes more of it on to the frame and the arm.
Measured at every tension and swing speed
The figures at the top of this page come from one test condition: 51 lb at fast swing speed. There are one in total, and all of them are below. Tension moves the bed more than the choice between two similar strings does, so this is the table that actually answers "what will it feel like for me".
Stiffness lb/in lower = softer, kinder on the arm
| Strung at | Fast swing |
|---|---|
| 40 lb 18.1 kg | 205 |
Tension loss % lower = stays where you strung it
| Strung at | Fast swing |
|---|---|
| 40 lb 18.1 kg | 9 |
Energy return % higher = livelier, more free power
| Strung at | Fast swing |
|---|---|
| 40 lb 18.1 kg | 87 |
The highlighted cell is the condition every other figure on this site is quoted at.
What else the machine recorded
Further measurements from the same test, given at the reference condition of 51 lb, fast swing.
More from Toroline
- Absolute 17 (1.20) gauge 17
- Cash 16L (1.25) gauge 16L
- O-Toro 17 (1.23) gauge 17
- O-TORO Snap 16L (1.25) gauge 16L
- O-Toro Spin 17 (1.23) gauge 17
- O-Toro Tour 17 (1.23) gauge 17
- Snapper 17 (1.23) gauge 17
- Super Toro 17 (1.23) gauge 17
What these numbers mean
Stiffness · lb/in
How much the string bed resists deflection. Higher plays firmer and more controlled; lower plays softer and easier on the arm.
Tension loss · %
Share of the reference tension the string sheds under a fixed test protocol. Lower means the bed stays where you strung it for longer.
Energy return · %
Share of impact energy handed back to the ball. Higher plays livelier and more powerful.
Spin potential
Ball friction divided by string-on-string friction. Higher means better bite with a cleaner snapback, so more spin.
Ball bite · COF
String-on-ball friction. Higher grabs the ball harder through the brush.
String friction · COF
String-on-string friction. Lower lets the mains slide and snap back into place after impact.
Compare A5 16L (1.25) against 791 strings Switching from this? Convert your tension Use it in a hybrid Find it on the map Find the right string for me