I'm very new to mountain biking, and even newer to bike maintenance. Appreciate your time on a question that I'm sure is simple; I just can't find the right words to Google it.
I have a fairly nice Trek bike. The dropper post on it was losing pressure; I could add more and it'd lose it over a few hours or days. No one local wanted to service it, so I bought this for now:
I could probably have REI install it for a few bucks, but I'd like to take the opportunity to learn. Since there was a prior dropper post installed, it already has a cable & remote on the handlebar. I should just need to swap out the connection.
It was easy enough to disconnect, but now I'm looking at these two obviously incompatible interfaces and am totally lost (click for full size):
In order: (1) New dropper post, (2) connection that used to go into old dropper post, (3) Included bead that looks like the cable goes through it, and fits into the hole on the new post.
Additionally, the new post came with an instruction sheet (available here). Steps 15 and 17 look relevant, I just don't have enough experience to understand what they actually mean.
Obviously, I need to remove the current assembly on the end of the cable, and put a new (simpler) assembly on it. Doesn't look too difficult. I just can't find any name of that connection to find the 10,000 YouTube how-tos I'm sure exist on it.