In short, the Union Expedition are a no-go because of a sloppy ride interface. I have done and redone, double-checked directions, emailed Union, but I am still getting a 1.5cm or 15mm or 0.59 inch swing in the toe of the binding…A LOT! For reference, my Kara Prime1 do not budge at all.
Briefly, tour mode and just holding the binding in your hands reveal IMO a very refined piece of kit….minimal parts, simple operation “on carpet”, and cool looking design.
I am going to see how this plays out for a bit, as I have plenty of time to return them. I don’t see much good unless they figure out ride mode. What were Rice and Iguchi riding, I wonder?
from me. “So far, I am really stoked on most of your system, but let’s talk ride mode. I am having a lot of play and have tried reinstalling a few times to make sure. Any tips to help this? Are the mount disks meant to be center-high? Mine do not sit flush to the adapter plates. When placed on a flat surface the mount disks rock back and forth when pressed on all sides…about 1mm movement. I am tempted to sand down the high spot. It appears to be the section in the middle nearest the stance angles.”
Their response. “Thanks for reaching out. Stoked to hear that you’ve picked up a set of the Expedition bindings!
The Expedition disk and baseplate have about a 0.2mm tolerance when set up properly, so you may notice some small side to side rotation. Once the binding is on snow this tolerance is reduced to about 0.02mm. Above all, proper set of the split-disk system is crucial to having minimal rotation. If the bindings have been improperly set up this could lead to more rotation than would be considered normal. You can check out this video here for some tips on set up: https://www.youtube.com/watch?v=05L1Tgqyo3Q&t=1s
What you’re seeing with the mounting disks is part of the design. This is to help with the independent movement of both halves of the splitboard around the pin.
Hopefully we’ll have some snow soon so you can get out and try them in the mountains! You’ll be stoked once you feel how they ride!”
wow these manage to be even worse than imagined. what made you even consider these bindings in the first place? the cheap price? the fantastic pin interface? lol
From watching the install video, the split disks have a channel the pin slides through from one side to the other side of the binding. I would think that channel has be be the diameter of the pin and my guess is that the channel is wider than the pin, causing the rotation.
Continuing on what @downthemtn said; it would appear from Union’s video that this system lacks the ability to move toe/heel pucks independently to account for differences in insert spacing and/or differing gaps between board halves.
Or did I somehow miss that?
In any event, that would certainly allow for play in the pin channel and the back and forth play in your setup.
Bummer… At least you have a few proven options to fallback to and thanks for sharing your findings..
Shark Snowsurf Chuna Voile V-Tail 170 BC Voile One Ninety Five Spark R&D Arc
This should answer above questions: I stumbled across the Union Expedition while looking for some new resort binders. I used to ride Unions 6 or 7 years ago, and the Union interface, marketing, etc. drew me in. I felt like Seth and Evan, I had to catch a glimpse of these warlocks.
Anyway, I am happy with my K Prime1’s, but I thought if the Union system worked out, I could simplify my setup and sell some stuff.
A return seems very likely at this point. I just wonder how they did their r&d.
Disclaimer: I was shipped a mismatched set of mounting disks, so only one foot has the correct factory setup, and that is the one in the above video.
The Guys at our local shop had the Union setup on a board as well. They had the exact same issue with too much play in ride mode. Seeing it for myself I couldn’t imagine actually trusting these things when you’re 10 km in the backcountry. I would steer clear for a few seasons until they come up with a better design.
@GrahamC Thanks for your post. The loose/flexy interface is continuing to show up. First vid of someone riding them is up on youtube. The reviewer shows the bindings having play, but states he did not feel it on the ride down. He does end up saying the powder was too good to really notice.
I get that its difficult to make money in the snowboarding industry but for Travis Rice to whore himself out on a product this bad really makes me lose all respect for him as a person.