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Tourna

Big Hitter Silver Rough 17

Polyester Gauge 17 1.22 mm In production

Lab measurements for Tourna Big Hitter Silver Rough 17, 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

197lb/in

lower = softer, kinder on the arm

Tension loss

42%

lower = stays where you strung it

Energy return

86%

higher = livelier, more free power

Spin potential

4.1

higher = more spin off the string bed

Ball bite

0.423COF

higher = grabs the ball harder

Snapback

0.102COF

lower = strings slide and snap back

How it ranks against all 789 strings

Stiffness 197 lb/in · 65th pct

Stiffer than 65% of strings tested.

Tension loss 42 % · 71st pct

Sheds more tension than 71% of strings tested.

Energy return 86 % · 27th pct

Livelier than 27% of strings tested.

Spin potential 4.1 · 32nd pct

More spin potential than 32% of strings tested.

Ball bite 0.423 COF · 40th pct

Grips the ball harder than 40% of strings tested.

Snapback 0.102 COF · 66th pct

More string-on-string friction than 66% of strings tested.

Strings that play like this

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

Signum Pro Hyperion 17 (1.24) 95% match Kirschbaum Competition 17L (1.20) 95% match Weiss Cannon Scorpion 1.22 94% match Luxilon Big Banger Timo 17 (1.22) 94% match Luxilon Big Banger Ace 18 (1.12) 94% match Head Ultratour 17 93% match

More from Tourna

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 Big Hitter Silver Rough 17 against 789 strings Find the right string for me