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Tecnifibre

Razor Soft 17 (1.25)

Polyester Gauge 17 1.25 mm In production

Lab measurements for Tecnifibre Razor Soft 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

212lb/in

lower = softer, kinder on the arm

Tension loss

33%

lower = stays where you strung it

Energy return

88%

higher = livelier, more free power

Spin potential

7.4

higher = more spin off the string bed

Ball bite

0.517COF

higher = grabs the ball harder

Snapback

0.070COF

lower = strings slide and snap back

How it ranks against all 789 strings

Stiffness 212 lb/in · 81st pct

Stiffer than 81% of strings tested.

Tension loss 33 % · 55th pct

Sheds more tension than 55% of strings tested.

Energy return 88 % · 50th pct

Livelier than 50% of strings tested.

Spin potential 7.4 · 94th pct

More spin potential than 94% of strings tested — elite spin generation.

Ball bite 0.517 COF · 83rd pct

Grips the ball harder than 83% of strings tested.

Snapback 0.070 COF · 5th pct

More string-on-string friction than 5% of strings tested — slides and snaps back freely.

Strings that play like this

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

Solinco Revolution 16L (1.25) 95% match MSV Focus-Hex 16 (1.23) 94% match Solinco Hyper-G 16 Round (1.30) 94% match Diadem Solstice Power 16L (1.25) 94% match Gamma IO Soft 15L (1.40) 93% match Grapplesnake Tour M8 17 (1.25) 93% match

More from Tecnifibre

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 Razor Soft 17 (1.25) against 789 strings Find the right string for me