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Dunlop

Iconic All 17 (1.25)

Nylon Gauge 17 1.23 mm In production

Lab measurements for Dunlop Iconic All 17 (1.25), ranked against all 789 strings in the database. Every figure below is a testing-machine result at a fixed reference tension, not a playtest opinion.

Measured values

Stiffness

139lb/in

lower = softer, kinder on the arm

Tension loss

19%

lower = stays where you strung it

Energy return

92%

higher = livelier, more free power

Spin potential

—

not measured

Ball bite

—COF

not measured

Snapback

—COF

not measured

How it ranks against all 789 strings

Stiffness 139 lb/in · 5th pct

Stiffer than 5% of strings tested — exceptionally soft and forgiving.

Tension loss 19 % · 15th pct

Sheds more tension than 15% of strings tested.

Energy return 92 % · 70th pct

Livelier than 70% of strings tested.

More from Dunlop

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.

Snapback · COF

String-on-string friction. Lower lets the mains slide and snap back into place after impact.

Compare Iconic All 17 (1.25) against 789 strings Find the right string for me