Tecnifibre X-One Biphase 16 vs Tecnifibre X-One Biphase 17

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

  X-One Biphase 16610th

  X-One Biphase 17635th

• Easier on my arm

  X-One Biphase 16180th

  X-One Biphase 17185th

• More control, less launch

  X-One Biphase 16628th

  X-One Biphase 17625th

• More power and depth

  X-One Biphase 16170th

  X-One Biphase 17133rd

• Plays the same for longer

  X-One Biphase 1690th

  X-One Biphase 1737th

• Lasts longer before it breaks

  X-One Biphase 16628th

  X-One Biphase 17686th

• Best feel and touch

  X-One Biphase 16158th

  X-One Biphase 17119th

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 X-One Biphase 16 in full X-One Biphase 17 in full