which one do you use ?
which one should i look at getting ?
which one are more available ? ( new and 2ndhand )
Which one is cheaper base + extension ?
i already have a euro pin but will need a new extension or
i like the idea of the US cup , as they have push pin on each side to lock
But look like the plastic cup can break
what the different with Tendon and one bolt rubber?
and how tight should the tendon be?
This sort of question is kind of like asking whats better, Ford or Holden.
I use a the two pin cup with a rubber bogie thing system coz that is what I've always used. It works. I like it. I can see when it needs attention. It is simple and hasn't jammed up or failed on me yet.
Chinook makes a great two bolt system that I've been using since about 1997. Its still the same system and it works well. Bases I bought back then work with a new universal I bought last year. That is pretty good in my book.
If you go the euro pin then the only one to get is the chinook that's machined out of a single piece of stainless, other brands bond/screw in two pieces of metal that rust out and break.
If you go the tendon then be sure to replace it every year including the bolts, as the tendon can crack and you never see it.
Personally I use the two bolt cup with a boge joint, very rarely breaks. I've had the pins break off but every time only one pin breaks so everything is together and you only discover it de-rigging.
The plastic cup doesn't break.
The only time I've broken one was when my base was loose and the constant bashing forward and backward in the mast track caused the rubber to fail catastrophically. This would happen on any base.
i like the euro pin and tendon combo.
Have trid them all and this is just a personal preference for the speed ane ease of use.
I have never had and reliability issues, however where i sail is not very sandy. so you may like to consider what the conditions are like in the area you sail and whether that will add any addtional wear and tear,.
Yep in euro-pin Chinook is the one and only due to one piece machining and big heads on the capscrews so when you come to change a tendon you can actually get the bolts undone. That is the second one down in your pics
In US cup they are pretty much all good and advantage is interchangeability of bits, Chinook is a good buy.
I personally don't like US cup as the pins fish-eye the holes in the cup and the whole assembly then develops too much slop. Plus as Nebbian says the pins shear off eventually... but only one at a time (and the u shaped psring with pins on it is cheap, may as well have a couple of spares.
Europin forever! Especially if you plan on using RDM.
And I think tendon (straight rubber) rather than Boge (the hourglass shaped one) as the tendon failsafe is a bit of downhaul rope, which is surely a damn sight stronger than the nylon strap on a Boge joint
I've been using the Streamlined Euro-pin for a few years now and have had no issues. Rock solid and with all the stainless steel bits it looks even stronger than the chinook ones. They also have a fixed deck plate option, You can just buy extra deck plates for easy swapping between boards.
I researched this a bit before buying gear and some people have said that the euro-pin system can sometimes jam up with sand.
I opted for the US cup but I have found it a bit fiddly to get undone especially if in the water. Other sailors I observe seem to get their euro-pins undone much easier.
The biggest issue however is that I discovered the minimum setting on a Chinook skinny US cup extension is 10 CM, this has caused a problem getting certain sails to fit certain masts.
I use the cup.
Like Nebs said, replace the tendon every year though and make a habit of checking it regularly. Just recently noticed some tiny little splits in mine after two years of faithful service, so I took it to steve for a replacement, and lo and behold there were some quite decent splits at both ends where the two allen bolts run through
Cup instead of pin will never purchase pin type again in my life (had them come apart)
NOTE FOR THE CUP TYPE The female part of the extension is prone to bending out of shape and that's why they become difficult to introduce..
Cup, tendon, Chinook. I have seen 2 x Euro pins shear off level with the base.
To those of you who like the cup style, how do you get the bolts undone without having to find a stick or screwdriver to depress the bolts? I can never do it with just my fingers.
Chinook europin for me.
Have you ever seen a cup mast extension been bent ?
or crack cup
Every one saying the pin can sheer off . But can you repair the cup
I can see that you can buy replacement pin .
But really worried if it sheer off and the mast hit my foot or worst , my board
I understand that when you flip the sail around , on the Eu pin , the mast extension routates around the base pin .
What rotate on the USA cup , ?
Does the mast rotate around the mast extension or does the cup turn ?
Or bellow the rubber part
^^^Your putting too much thought into it, They will both do the same job. Just remember this is the most worked part of your kit with rubber bending millions of times and metal grinding on metal. People hang onto these things way too long 5-10 years later I'm sure is past its life span....And they wounder why they break. Both have weak spots, The pin on the Euro and there is nothing more then a bolt attaching the Us cup to the boge. I have read that the boge offers a bit more shock absorbtion then the tendon but with the US cup you can't get zero on your extension.
.....Just get the best one you can based on available coin. Unless you're going to be sailing Hookipa or Margaret river everyday I would not be too concerned.
The boge unmasked, I'm sure it has just as much chance of breaking as the euro-pin?
Just to throw a spanner in the works, Made by chinook and no boge or tendon...Must be the best universal in the world?
That is not the first time I have seen someone try to introduce a mechanical uni joint, and in the past they have all failed. Too many parts to wear and fail and doesn't work as freely through the required plane of movement as existing rubber joints... if it aint broke...
I once used US cup extensively, found the same issues Mark describe above. In the course of a season the cup would wear and become sloppy. this slop can introduce potential failure.
Since going to the EU pin (which was by accident as a supplier sent me the wrong extension so I changed over) I have only had one issue, which was user error. I got some sand stuck in the female end and had to stuff around for a bit to get the rig to join the board. I use a Severne one and have no issue.