this post was submitted on 22 Aug 2025
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I just installed a Connex link to join a KMC X9 chain and I'm noticing that whenever the link goes through the derailleur hanger, it causes it to move a bit, which causes rhythmic noise. Anyone using Connex noticing this? Is it normal?

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[–] avidamoeba@lemmy.ca 1 points 3 weeks ago* (last edited 3 weeks ago) (1 children)

For now I'm going with this one alone. I'm trying to keep this 9s drivetrain cheap. Will likely be running it for commuting during the winter in TO.

BTW I used Endurance chip and the wax seems stronger physically. It seems that the wax that's inside the roller on the hard side of the link causses the plates to be slightly wider than normal and when the link plates are assembled around it, there's too much fricting between the outer plates and the inner plates. I'm probably gonna rewax it so that it melts and reflows, hopefully not recreating the same effect.

E:

The green plates are the inner plates of the chain. The red is the roller. The blue are the outer plates - of the link. The distance between the two green plates is a little wider than normal. I think because of the wax that's between them and the roller and in the roller itself. The difficulty in articulation comes form friction between the green and the blue plates.

[–] Showroom7561@lemmy.ca 2 points 3 weeks ago

I used Endurance chip and the wax seems stronger physically. It seems that the wax that’s inside the roller on the hard side of the link causses the plates to be slightly wider than normal and when the link plates are assembled around it, there’s too much fricting between the outer plates and the inner plates.

Ah, that's an important distinction, and you're probably right! I've been using just the standard wax without additives, so it loosens up pretty quickly. I may go with the Endurance chip, but ultimately, my plan is to move to the Rex hot wax (which can be tuned, too).