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Diadem

Solstice Pro 16L (1.25)

Polyester Gauge 16L 1.32 mm In production

Lab measurements for Diadem Solstice Pro 16L (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

190lb/in

lower = softer, kinder on the arm

Tension loss

29%

lower = stays where you strung it

Energy return

89%

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 190 lb/in · 58th pct

Stiffer than 58% of strings tested.

Tension loss 29 % · 47th pct

Sheds more tension than 47% of strings tested.

Energy return 89 % · 52nd pct

Livelier than 52% of strings tested.

More from Diadem

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 Solstice Pro 16L (1.25) against 789 strings Find the right string for me