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Yonex

Rexis Speed 16L (1.25)

Nylon Gauge 16L 1.21 mm In production

Lab measurements for Yonex Rexis Speed 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

126lb/in

lower = softer, kinder on the arm

Tension loss

29%

lower = stays where you strung it

Energy return

92%

higher = livelier, more free power

Spin potential

5.6

higher = more spin off the string bed

Ball bite

0.531COF

higher = grabs the ball harder

Snapback

0.094COF

lower = strings slide and snap back

How it ranks against all 789 strings

Stiffness 126 lb/in · 3rd pct

Stiffer than 3% of strings tested — exceptionally soft and forgiving.

Tension loss 29 % · 46th pct

Sheds more tension than 46% of strings tested.

Energy return 92 % · 70th pct

Livelier than 70% of strings tested.

Spin potential 5.6 · 71st pct

More spin potential than 71% of strings tested.

Ball bite 0.531 COF · 87th pct

Grips the ball harder than 87% of strings tested.

Snapback 0.094 COF · 54th pct

More string-on-string friction than 54% of strings tested.

Strings that play like this

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

Tourna Quasi Gut 17 92% match Yonex Rexis Comfort 16L (1.25) 90% match Tecnifibre Triax 16 (1.33) 86% match Gosen TecGut Remplir 16 86% match Double AR 666 (1.30) 85% match Head Reflex MLT 16 (1.30) 85% match

More from Yonex

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 Rexis Speed 16L (1.25) against 789 strings Find the right string for me