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Grapplesnake

Tour M8 17 (1.25)

Polyester Gauge 17 1.19 mm In production

Lab measurements for Grapplesnake Tour M8 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

210lb/in

lower = softer, kinder on the arm

Tension loss

34%

lower = stays where you strung it

Energy return

87%

higher = livelier, more free power

Spin potential

8.2

higher = more spin off the string bed

Ball bite

0.544COF

higher = grabs the ball harder

Snapback

0.066COF

lower = strings slide and snap back

How it ranks against all 789 strings

Stiffness 210 lb/in · 80th pct

Stiffer than 80% of strings tested.

Tension loss 34 % · 57th pct

Sheds more tension than 57% of strings tested.

Energy return 87 % · 37th pct

Livelier than 37% of strings tested.

Spin potential 8.2 · 97th pct

More spin potential than 97% of strings tested — elite spin generation.

Ball bite 0.544 COF · 90th pct

Grips the ball harder than 90% of strings tested.

Snapback 0.066 COF · 2nd pct

More string-on-string friction than 2% of strings tested — slides and snaps back freely.

Strings that play like this

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

Tecnifibre Razor Soft 17 (1.25) 93% match Luxilon ALU Power Rough 16L (1.25) 93% match Babolat RPM Blast Rough 15L 92% match Luxilon Element Rough 16 (1.30) 92% match Diadem Solstice Power 16L (1.25) 92% match Diadem Elite XT 16 92% match

More from Grapplesnake

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 M8 17 (1.25) against 789 strings Find the right string for me