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Tecnifibre

Razor Spin 17/1.25

Polyester Gauge 17 1.32 mm In production

Lab measurements for Tecnifibre Razor Spin 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

222lb/in

lower = softer, kinder on the arm

Tension loss

27%

lower = stays where you strung it

Energy return

90%

higher = livelier, more free power

Spin potential

8.6

higher = more spin off the string bed

Ball bite

0.622COF

higher = grabs the ball harder

Snapback

0.072COF

lower = strings slide and snap back

How it ranks against all 789 strings

Stiffness 222 lb/in · 89th pct

Stiffer than 89% of strings tested.

Tension loss 27 % · 39th pct

Sheds more tension than 39% of strings tested.

Energy return 90 % · 61st pct

Livelier than 61% of strings tested.

Spin potential 8.6 · 98th pct

More spin potential than 98% of strings tested — elite spin generation.

Ball bite 0.622 COF · 97th pct

Grips the ball harder than 97% of strings tested — bites the ball hard through the brush.

Snapback 0.072 COF · 7th pct

More string-on-string friction than 7% of strings tested — slides and snaps back freely.

Strings that play like this

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

Weiss Cannon Blue Rock N Power 96% match Solinco Hyper-G 16 96% match MSV Focus-Hex 16 (1.23) 96% match Signum Pro Plasma HEXtreme 16 (1.30) 95% match Tecnifibre Black Code 4S 16 (1.30) 95% match Head Lynx Tour 17 (1.25) 95% 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 Spin 17/1.25 against 789 strings Find the right string for me