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Yonex

Tour Super Pro 850 16 (1.32)

Nylon Gauge 16 1.31 mm In production

Lab measurements for Yonex Tour Super Pro 850 16 (1.32), 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

149lb/in

lower = softer, kinder on the arm

Tension loss

17%

lower = stays where you strung it

Energy return

93%

higher = livelier, more free power

Spin potential

4.3

higher = more spin off the string bed

Ball bite

0.428COF

higher = grabs the ball harder

Snapback

0.100COF

lower = strings slide and snap back

How it ranks against all 789 strings

Stiffness 149 lb/in · 11th pct

Stiffer than 11% of strings tested.

Tension loss 17 % · 8th pct

Sheds more tension than 8% of strings tested — outstanding tension maintenance.

Energy return 93 % · 81st pct

Livelier than 81% of strings tested.

Spin potential 4.3 · 37th pct

More spin potential than 37% of strings tested.

Ball bite 0.428 COF · 43rd pct

Grips the ball harder than 43% of strings tested.

Snapback 0.100 COF · 63rd pct

More string-on-string friction than 63% of strings tested.

Strings that play like this

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

Gosen Multi CX 17 (1.24) 98% match Prince Premier Power 17 95% match Gamma Live Wire XP 17 (1.27) 95% match Prince Premier Control 15 94% match Gamma TNT2 Pro Plus 17L (1.24) 94% match Gosen Multi CX 16 (1.30) 94% 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 Tour Super Pro 850 16 (1.32) against 789 strings Find the right string for me