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211 BASE
PATENT DESIGN

Advantages over 1-bolt mast foot systems

  • No unwanted detachment of the mast base from the mast track (significantly increased safety)

  • No over-tightening of the mast foot required

  • No more jammed mast foot that has to be loosened with a tool

  • No more searching for the optimal position again and again

  • Weight only approx. 260 g instead of 350 g and more...

  • Low overall height of only approx. 69mm instead of approx. 85mm and more...

  • Fork can be attached higher thereby more sailing power

  • Clean design

  • No sharp edges or annoying levers

  • Internal safety leash (R3 joint with aramid tendon)

  • Can also be used like 1-bolt mast foot systems! Then less than 230gr!

What's new?

With the 211 base, the acting forces were simply broken down. Conventional 1-bolt systems function via a non-positive transmission of forces. The tighter the mast foot is tightened, the more securely it sits. In principle, the 211 Base works the same way, but has been expanded so that the horizontal force component is absorbed by a firmly screwed sliding block like a 2-bolt mast foot system. The only difference is that no mast base plate is screwed onto the board, but the screw connection takes place in the mast rail. The last degree of freedom, namely torsion, is prevented by locking pins that grip the mast rail. The problem of previous 1-bolt mast feet slipping within the mast rail is thus reliably prevented. Due to the construction, this results in immense advantages in terms of performance, design and functionality.

Why a rubber joint?

The 211 base is coming  with a rubber joint. The decisive factors here are the material and the geometry. Many surfers don't think about this at all, but the choice of joint is still crucial. So why not use a tendon or cardan joint? The answer to this depends on the application. My favorite spot is the wave. In connection with this, it also goes over one or the other ramp. When landing, strong forces act on the base of the mast, which are noticeably dampened by a rubber joint. If, on the other hand, a cardan joint is used, the damping effect is zero. A tendon joint, on the other hand, has a much smaller cross section, so that the material has to be much harder compared to the rubber joint, so that the damping is also much worse here than with the rubber joint. The advantage of tendon joints lies in the low overall height, which allows the surfer to hit the boom higher. The overall height of the 211 base is comparable to that of Tendon mast feet. The cardan joint is particularly suitable for training because it enables the board and sail to be connected without any effort.

Why a rubber joint?

The 211 base is coming  with a rubber joint. The decisive factors here are the material and the geometry. Many surfers don't think about this at all, but the choice of joint is still crucial. So why not use a tendon or cardan joint? The answer to this depends on the application. My favorite spot is the wave. In connection with this, it also goes over one or the other ramp. When landing, strong forces act on the base of the mast, which are noticeably dampened by a rubber joint. If, on the other hand, a cardan joint is used, the damping effect is zero. A tendon joint, on the other hand, has a much smaller cross section, so that the material has to be much harder compared to the rubber joint, so that the damping is also much worse here than with the rubber joint. The advantage of tendon joints lies in the low overall height, which allows the surfer to hit the boom higher. The overall height of the 211 base is comparable to that of Tendon mast feet. The cardan joint is particularly suitable for training because it enables the board and sail to be connected without any effort.

Installation

1. Insert and position the double sliding block in the mast rail.
(Several sliding blocks can be fixed in the mast rail)

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2. Place the washer over the free thread of the double sliding block

3. Screwing the mast base into the free thread of the double sliding block. Make sure the holes are centered over the mast rail.

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4. Attaching the fuse cover.
The locking pins prevent the cover from detaching from the base.

The uninstallation runs in reverse order. To loosen the fuse cover, put your fingers in the mast rail under the cover and loosen the cover with a rocking motion.

Alternatively:
The 211 Base can also be used like any other 1-bolt mast base. To do this, simply guide the sliding block into the mast rail and turn the mast foot until it is tight. In this case, fixing the grub screw and the cover could be dispensed with. The weight of the 211 base is then less than 230 g and offers easier adjustment if you are unsure about the optimal setup. However, such a use is accompanied by the aforementioned disadvantages of every 1-bolt mast foot!