R3 – joint?
R3 – Joint stands for Rope Reinforced Rubber Joint and, in simple terms, means that the safety line runs in the core of the rubber joint. Should the rubber joint ever bless the temporal, the board and sail still remain securely connected via the built-in aramid tendon (Kevlar) with a breaking load of approx. 200 kg. Due to the internal guidance of the tendon, it also prevents the rubber joint from overstretching if, for example, you cling to the mast of the sail during a wave wash. Another advantage is that there is comparatively little play due to the very short excess length of the tendon of only 5-10 mm compared to the rubber joint. In the event of a break, the function of the joint is better preserved, which increases controllability in contrast to external safety lines.
R3 – joint?
R3 – Joint stands for Rope Reinforced Rubber Joint and, in simple terms, means that the safety line runs in the core of the rubber joint. Should the rubber joint ever bless the temporal, the board and sail still remain securely connected via the built-in aramid tendon (Kevlar) with a breaking load of approx. 200 kg. Due to the internal guidance of the tendon, it also prevents the rubber joint from overstretching if, for example, you cling to the mast of the sail during a wave wash. Another advantage is that there is comparatively little play due to the very short excess length of the tendon of only 5-10 mm compared to the rubber joint. In the event of a break, the function of the joint is better preserved, which increases controllability in contrast to external safety lines.
Compatibility?
The R3 joint hinge complies with the existing standard of rubber joints. The rough dimensions are 42mm in diameter with a height of approx. 58 mm and thus correspond to the dimensions of existing “Boge” rubber joints.
Thread options:
M10 / M8
The M10 / 8 thread option means that the rubber joint is equipped with an M10 thread and an M8 thread on the opposite side. The M10 / M8 version is usually used with so-called 1-bolt mast base systems. From a technical point of view, the S4LT 211 Base works differently than the systems of the competition, but also uses the version with M10 / M8 thread. A one-piece M10 Europin is provided for the M10 thread. The M8 thread is used to hold an M8 grub screw. To secure against unscrewing, both the Europin and the grub screw are permanently glued with, for example, green Loctite or comparable products.
M10 / M10 (planned):
The M10 / M10 thread option means that the rubber joint is equipped with M10 threads on both sides. This option is usually used for so-called 2-bolt mast base systems. This means that a mast base plate is screwed to the mast rail using 2 bolts / screws. The mast base plate usually has a mount for the elaborately constructed version of the rubber joint, which is connected to the rubber joint with an M10 screw.
Specialty:
The 211 Base is unique in its patented design. The connection between the mast base plate and the rubber joint is made using a screw connection, for which the R3 joint was specially designed. This means that only R3 joints can be used for the 211 Base. The other way around, however, the R3 joint joint is compatible with other mast base systems with rubber joints from other manufacturers.
Rubber joint equal to Tendon?
Please note that a so-called tendon joint cannot be compared with a rubber joint. These are different systems with different advantages and disadvantages! First of all, a tendon joint cannot be used for a mast foot system with a rubber joint. It doesn’t work the other way around either!
Tendon vs rubber joint:
Mast foot systems with tendon joints are superior to those of conventional mast foot systems with rubber joints in terms of their overall height. This means that the height of the mast base is up to 20 mm lower. This means that the fork can be struck 20 mm lower with the same performance. In other words, it means that the surfer can strike the fork 20 mm higher with the same height setting, which shortens the cantilevered length of the mast beyond the boom. The flex in the mast above the boom is reduced, which increases sailing performance.
Another advantage of the tendon joint is its significantly lower weight, which is due to its narrow design. However, this is associated with the decisive disadvantage of the rubber joint, because the tendon joint is significantly harder with a very small contact area, which leads to an undamped power transmission. A mast base with a rubber joint should therefore always be used in tough bump and jump conditions.
exception
The 211 Base, on the other hand, manages the balancing act, so that it combines the advantages of both systems!
see: 211 Base
material
Heavy-duty black anodized T6 aluminum thread holder connected by a highly flexible aramid rope with a breaking load of approx. 200 kg. Metal thread encased in injection molding with PA6 (polyamide) plastic. EDPM rubber coating.