Gosen Sidewinder 16 (1.31) vs Yonex Poly Tour Air 16L

Measured, side by side

Bars are percentile against all 791 strings, and the marked side is the one that measures better, which is not always the one you want. A firmer bed is worse for your elbow and better for your control, and no measurement knows which of those you came for.

Which one wins, by problem

Each string's standing on the site's rankings, out of every measured string in the database. This is where a comparison stops being arithmetic and starts being a decision.

• More spin and shape

  Sidewinder 16 (1.31)548th

  Poly Tour Air 16L437th

• Easier on my arm

  Sidewinder 16 (1.31)317th

  Poly Tour Air 16L264th

• More control, less launch

  Sidewinder 16 (1.31)483rd

  Poly Tour Air 16L554th

• More power and depth

  Sidewinder 16 (1.31)341st

  Poly Tour Air 16L302nd

• Plays the same for longer

  Sidewinder 16 (1.31)629th

  Poly Tour Air 16L518th

• Lasts longer before it breaks

  Sidewinder 16 (1.31)410th

  Poly Tour Air 16L422nd

• Best feel and touch

  Sidewinder 16 (1.31)347th

  Poly Tour Air 16L301st

Swapping between them: what tension?

Bed stiffness is published at one reference tension, so the only honest conversion is to scale it. These are starting points from 52 lb, not prescriptions. The calculator takes your own tension.

Hybrid: what if you used both?

Estimated, not measured. No hybrid combination has been tested as a bed. These figures are the two strings' own lab measurements weighted by how much of the bed each one actually is. Treat them as a guide to which way a pairing moves, never as lab data.

Open this in the hybrid builder

Which goes dead first?

Estimated from tension loss, which is the only thing the database measures about ageing. This is when the bed stops playing the way you strung it, not when the string breaks.

Both strings in full

Add a third string Sidewinder 16 (1.31) in full Poly Tour Air 16L in full