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Luxilon

Alu Power Soft 1.25

Polyester 1.25 mm In production

Lab measurements for Luxilon Alu Power Soft 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

198lb/in

lower = softer, kinder on the arm

Tension loss

37%

lower = stays where you strung it

Energy return

88%

higher = livelier, more free power

Spin potential

6.9

higher = more spin off the string bed

Ball bite

0.514COF

higher = grabs the ball harder

Snapback

0.074COF

lower = strings slide and snap back

How it ranks against all 789 strings

Stiffness 198 lb/in · 66th pct

Stiffer than 66% of strings tested.

Tension loss 37 % · 62nd pct

Sheds more tension than 62% of strings tested.

Energy return 88 % · 48th pct

Livelier than 48% of strings tested.

Spin potential 6.9 · 89th pct

More spin potential than 89% of strings tested.

Ball bite 0.514 COF · 82nd pct

Grips the ball harder than 82% of strings tested.

Snapback 0.074 COF · 11th pct

More string-on-string friction than 11% of strings tested.

Strings that play like this

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

Gamma Jet 16L (1.28) 97% match Luxilon Element Rough 16 (1.30) 97% match Yonex Polytour Rev 16L (1.25) 95% match Signum Pro Yellow Jacket 17g (1.22) 95% match Gamma Moto Soft 16 (1.29) 94% match Gamma IO Soft 16 (1.28) 94% match

More from Luxilon

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 Alu Power Soft 1.25 against 789 strings Find the right string for me