Product Information

2022/23 Duotone Power XT Mk2 Extension SDM / RDM / Aero

Year: 2022/23
Please see Duotone Website for latest pictures of these units.

Sprung collar adjustment. 

Loop and Go Pulley base with ratcheting pulley for downhaul tensioning and release.
Works with all angles of sail pulley block or cringle (eyelet).
Fast release via cleat.
Can be upgraded to a Shox Extension (requires Shox Mast Base).

Power XT Mk2 Extension.
Option 1: SDM
28cm or 42cm  £179.00
Option 2: RDM
36cm £179.00

SLS Carbon Power XT 34cm RDM  £299.00
Click Here for Aero Info

Shox Upgrade Kit
 RDM £109.00
SDM £109.00
Shox Mast Base ( does not come with Shox Upgrade)
Shox Tendon Upper for iBase2 £69.00
North Pin or Shox Tendon with iBase2 £95.00

These are the latest in the line of  Power XT extensions, designed to make setting the downhaul of your sail exact. The ability to add (or release) tension one click at a time means sail setting can now be precise. The tension can also be adjusted on the water (no more coming in through the shorebreak to make adjustments) which is a real plus on changeable condition days.
This model also has the Shox modification kit option.
The Mk2 version claims to have done away with the issues of the Mk1, so if you were not a fan of the first, maybe try the second!
Duotone say...

Hard to see, but true: The POWER.XT 2.0 has been completely redesigned. besides the basic idea it has almost nothing in common with its predecessor. From the brand new, extremely solid ratchet mechanism, the simplified release function and the high-strength Lyros® Dyneema rope up to the possibility to upgrade the POWER.XT 2.0 with a damper function - the POWER.XT 2.0 can do so much more and everything better.
Since its introduction 10 years ago the POWER.XT is the unmatched standard, when it comes to extensions with trim aids. Anyone who has used it once never wants to be without it. Thanks to the integrated lever it handles all downhaul forces and allows precise trim adjustments and fine tuning even on the water. Even kids can use it to cope the extreme downhaul tension of modern slalom sails. Each profile is adjusted with millimeter precision in seconds. The 15 cm long lever and the power ratio of 1:60 enable absolutely power-saving trimming.

SHOX Upgrade.
From now on all POWER.XT 2.0 can be upgraded with the unique NorthSails SHOX suspension system. SHOX, the first integrated shock absorber that adds a chassis to the board, similar to a full-suspension on a mountain bike. Especially in choppy conditions it smooths out the board and the rig, absorbing chop and the impact after landing. Tests in all leading Windsurf-magazines have proven that the rig doesn't bump, the rider can convert the wind power much more effective into acceleration making you a proven 2-3 knots faster, and also preserves the equipment and your joints. Whether speed, racing or freeride, the new POWER.XT in combination with the SHOX. UPGRADE.KIT definitely guarantees more control, more speed and more comfort. In the wave the SHOX suspension system provides cushioned landings and increased board control when going down-the-line as well as when crossing the white water.
The upgrade is easily done in a few simple steps. The new, very stiff cup ensures that the suspension-tube runs with absolutely no friction, the damping elements respond more sensitively and thereby creates a more enjoyable ride. No wonder that almost all of our top athletes swear by the SHOX option rather than going without! Of course the SHOX.UPGRADE.KIT is available for both POWER.XT SDM and RDM in all lengths!! 


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