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Duotone Uni XT Extension

Duotone Uni XT Extension


The greatest invention in windsurfing history – FULL STOP

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The first and only extension on the market which is compatible with all sail brands.

Uni.xt – the most technically advanced and yet the most lightweight standard aluminium extension we have ever built. Now also built using aero carbon technology to create the most lightweight extension in the world.

When it comes to standard extensions, everyone has probably experienced some nasty surprises at some point. They rarely fit with the rope alignment on the sail, most of them need high downhaul forces, and more often than not the mechanism for adjusting the height is extremely fiddly. Before designing the uni.xt we analysed all of these issues in detail and came up with workable solutions. The strong and super-solid uni.xt extension may look like numerous other standard extensions at first glance, yet it is replete with innovations which make it a far superior product.

Key features

  • Lightest extension – Uni xt aero rdm 36: the lightest extension on earth
  • 2 thread system – Compatible with all sail brands
  • Double foot trim – 30% increased efficiency
  • Rapid release – Instant de-rigging
  • Teufelberger rope – Original teufelberger® rope
  • Shox upgrade – Shox upgrade kit for pioneering damping technology
  • 2 year unconditional warranty – Two years unconditional warranty when registered online


  • Aero RDM 34, 420g, 4-34cm
  • RDM 36, 580g, 4-36cm
  • SDM 28, 540g, 2-28cm
  • SDM 42, 640g, 1-42cm

Additional information


Aero RDM 34, RDM 36, SDM 42, SDM 28


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