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Diadem

Solstice Pro 16L (1.25)

Polyester Gauge 16L 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

179lb/in

lower = softer, kinder on the arm

Tension loss

31%

lower = stays where you strung it

Energy return

89%

higher = livelier, more free power

Spin potential

7.3

higher = more spin off the string bed

Ball bite

0.589COF

higher = grabs the ball harder

Snapback

0.081COF

lower = strings slide and snap back

How it ranks against all 789 strings

Stiffness 179 lb/in · 45th pct

Stiffer than 45% of strings tested.

Tension loss 31 % · 50th pct

Sheds more tension than 50% of strings tested.

Energy return 89 % · 56th pct

Livelier than 56% of strings tested.

Spin potential 7.3 · 93rd pct

More spin potential than 93% of strings tested — elite spin generation.

Ball bite 0.589 COF · 95th pct

Grips the ball harder than 95% of strings tested — bites the ball hard through the brush.

Snapback 0.081 COF · 26th pct

More string-on-string friction than 26% of strings tested.

Strings that play like this

Closest matches across stiffness, tension loss, energy return and spin potential.

Solinco Tour Bite 19 (1.10) 96% match Solinco Tour Bite Soft 18 (1.15) 96% match Volkl Cyclone 19 (1.10) 96% match MSV Co-Focus 17L (1.18) 96% match Solinco Hyper-G 18 (1.15) 95% match Volkl V-Star 18L (1.15) 95% match

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